Me, I never had any problem over training. I'd just get the achies when starting something new and in a week I'm increasing like a madman.

Not to beat my own drum but I gotta tell you when I started weight training a few years ago. Everone lifting was doing at least their own bodyweight on the free weights. For me the first few days I was so sore I had half the range of motion in my arms, and my legs were shaky. Like magic the soreness went away after the week and I was adding several pounds everyday. On some machines like the leg extensions I could squeeze off more than 65 lbs (3 sets/10 reps) but after a month I was doing 180 which was the machines max, with the addition of ankle weights and 15 reps. I have good endurance when I'm in season, I was only outdone by a friend of mine that could have given Bruce Lee a run for the money. Biggest factors that helped me go full throttal was going to bed at 10:00/30ish and getting a good 8 hours sleep. A good labor job helps, and also a good routine along with a good diet.