[Buckeye81]

Although I am echoing what previous poster have already said, I want to emphasize the importance of initially focusing on form and technique with lighter weight. Around this time last year, I was forced to take a 4-5 month break from lifting due to a back injury I suffered from doing sloopy deadlifts. It is sooo frustrating to be held back from working out due to physical limitations when the mental desire to work out was there. The second time around I took the time (3-4 weeks)to perfect all the compound lifts, although like you I felt like I "wasted" a workout because I didn't feel physically exhausted afterwords.

I guess the moral of the story is focus on perfecting your form and ONLY THEN hit the weights hard! When you really start lifting heavy your body will thank you for it.