Hello - Overtraining - McFly
Being tired and getting weaker is a sure sign of overtraining. You aren't recovering properly from your workouts and it is specifically your workouts and lifestyle that are causing this.
Whatever you are currently doing seems to have taxed your system too much. I'd wager 2 weeks off and all your lifts go up by the 2nd workout back.
Anyway - start eliminating the bullshit like flies and other assistance work. Do these:
Squat, Bench, Deadlift, Dips, Power Clean (I assume football), Curls, pullups, Military, Bent rows, and some hamstring work (Goodmornings are better than stiff leg DL's).
Just do these lifts and concentrate on improving each of them. You can come up with your own program but I'd probably do MWF (legs, chest, back) and keep it simple at first, approach it like a sport and try to improve. Take at least 10 days off, preferably 14 before starting this as your body is already shot.
Considering the body has limited recovery potential (as does your central nervous system which is frequently overlooked and often depleted by continually training to failure even on the useless exercises) it is important to place your efforts on the lifts which generate the most bang-for-the-buck. Don't waste your time or recovery training with all that isolation bullshit - it is antithetical <is that a word?> to your goals.
So - just cause you stopped making progress doesn't mean you need drugs. You need to understand why you stopped progressing which is something that most drug users will never know cause now they live their lives on and off drugs all the time. Read up on the techniques for each of the major lifts (check the westside barbell website as well as us olympic lifing). Goto the Meso board (or triedia now also) and read the posts from Animalmass and Johnsmith182. AM is a Westside lifter, JS appears to be a high level strength coach for a variety of atheletes (they bitch about keeping their lifter's weights down since they tend to put on too much muscle from the training - these are the guys you want to talk to - seach and read all of their posts - triedia may be easier than meso for this - several of their threads are compilations of articles written on lifting and coaching lifters).
I would go into more theory myself but it is already written so good luck - PM me if you have trouble finding it. Believe me, it will revolutionize your ideas on training and completely revamp your body.