Im being honest... i don't know much about weight lifting. I started in january and I just recently decided to get serious with it. Ive drinking whey protein+milk shakes and creatine. I use a home weight lifting machine labeled "Competitor (WM1505)" that has been with the family since christmas.
I alternate one day of rest and one day of working out because I was told that's what I should do by a friend (he also recommended the shakes and creatine). I chest pressed 100lbs (the whole stack) 16 reps, then 18, then 20 over the period of one week. Today I could only 16 until I couldnt anymore. Am I training too hard? I've heard it is possible to damage your muscles if you train too hard... is that possibly why I cant do as many now? I'm a small guy.. I don't know how that factors in to weight lifting but I'm only 5'5 and I think 135 lbs. Maybe that's as much as my muscles can go?
Sorry for all the silly questions.