You seem to be a bit over anxious. First thing to do is calm down. I had similar problems for about 6 years of my life. I felt that everything was just getting worse and worse. I had major back pain, Always tired, couldn't concentrate, etc.
First things first:
1. You must realize that your body can take a long time to adapt to effective changes. There is not necessarily a quick fix pill.
2. What really helped me turn things around where I feel almost "back to normal" was to start juicing. I would juice just about everything. I'm not a person that likes vegetables so I learned that I could just juice them and slam it all down without having to deal with the eating part.
3. You have to take a journal and write everything down then try to find the underlying patterns. It could be anything. Your environment may have everything to do with it.
4. Ultimately vitamin D seemed to be the major issue. I was staying inside a lot(I worked at night so this was a major issue). I started getting out during the day and slowly over time I started to feel a bit normal. Before I felt like I was constantly in a stupor. I'd have some vision problems, I'd wake up a lot when sleeping to urinate, I felt like the the hours would just pass and I'd get nothing done, etc.
Over time by juicing, getting real sunlight, exercising, and trying to change some habits things started to change. It took me a while to piece things together. Don't expect help from anyone. You have to figure it out yourself. It won't be easy. Chances are, whatever it is is something you are not expecting or thinking matters but it is.
It could be, for example, a carpet you bought that is giving off a lot of VOCs, or you are taking some supplement that is screwing your body up, or you are eating certain foods that do it but you just can't put two and two together because you think "Oh, there is no way it could be that".
The main thing to realize is
1. That you can figure out what is wrong
2. It will take time.
What you have to do is simply this: Try to feel the underlying direction you are headed. You want to feel the "low frequency" direction so when you do the right things you can stay with them. That is, you have to feel the underlying trend. Think of the stock market, a lot of jitter happens. If you are constantly changing at every turn you lose. Try to get back to basics. If you've been taking a lot of drugs(illicit or prescribed) it can take a while for your body to regain balance.
For me, I had several issues all going on that I think all stemmed from the underlying vitamin D deficiency and probably poor diet and lack of real exercise. I've always been a poor eater and I think it caught up with me. I had a kidney stone that really seemed to fuck me over and I had a low level infection. At first when I started having problems it was very irregular and I had no clue. I ended up, after a few years, thinking it must be gluten because I'd get the shits almost every time I'd eat wheat. But then I realized it was probably milk. The patterns were very confusing cause sometimes I'd get sick and other times I wouldn't. Sometimes it would be immediately after I hate cereal and other times it would happen many hours after. I think the vitamin D deficiency was the main cause. The deficiency causes a myriad of issues because the body simply cannot function properly.
I take supplements but I think getting sunlight is the best. It's more than just the Vitamin D it produces, it seems to make me feel energetic. The warmth on my skin feels really good(I'm far more aware of it than I ever was, probably because I did without it for so long). The supplements are probably not absorbed as effectively as the body makes them.
Anyways, you have to put a plan together and figure it out, no one will give you a magic pill. Your issues could be anything and it might be a combination of several factors. You have to start trying different things and long enough for them to be effective.
1. Start spending at least an hour a day outside every day for at least a month. If it is vitamin D by the end of the month you will have felt that underlying trend of just starting to feel better and better and better. Here you'll know.
2. Cut out all the shit you are putting in your body that you are not sure helps.
3. Start juicing and use variety. Get anything and everything you can, even a little. If you are missing some micro nutrient, say, then even a little is better than none. Try whatever odd ball shit you see at the market. Generally you will definitely get a boost of energy from this alone but it might also supply you with any necessary chemicals you might need.
4. Change your food. You might eat something that is actually poisoning you and not realize it. It might be a certain can of soup where they put in some chemical that is causing you problems.(like how some people are allergic to the food coloring).
A long time ago when people had major problems, before medicine became what it is, they would send people off. Many times the person would get healthy then come back to the same thing and would end up getting sick again. What this tells me is that a lot of illness is due to our environment rather than our bodies. Of course over time our bodies can succumb to the environmental impacts. But if you can change your environment and habits enough and see a change then you can start seeing the light and walking towards it. Start doing different things. You have to change to change, it really is that simple. I know it's hard in practice but if you want things to be different then you have to create a real difference. Change your patterns and those patterns will change you.
Oh, and LSD won't help unless you are depressed, in fact, when I tried it I felt very off for about 6 months. Remember, the last thing you want to do is pile on the shit. You want to do LSD when everything is going great so that you get the best effect.