 15 year old, and I need help.
hey I'm 15 and have been working out for 4 years now. I have been lifting weights for about a year and a half, and before that I lifted just my own body weight, with push ups, pulluos, squats, sit ups, crunches and the like. recently my mum called me an exercise addict. I haven't missed 1 day since i started lifting weights. I don't lift very heavy, apart from when I go to the fym, I usually work out at home, but I do lots of reps. My body is solid muscle, but I don't have a lot of size. I'm 5 ft 4 and about 110 pounds. I have a really bad back, and know am not supposed to work out every day. I know if I take a day or 2 break every week, I won't lose size, but I'm worried about losing definition. I don't want to take a break unless I do. I also can't get any bigger. Please can someone give me some suggestions? | 
