well if i did 5lb on each hand and now i moved to 30lb on each i can do it but not more than 8 reps (on the bowflex) is that too much?

If you have less than a year of lifting experience, I'd say do a 3x12 to 3x15 program as preperation.

I often recommend HGM (Homegrown Muscle), first phase, beginner as one of the best starting points for new lifters. "New Rules of Lifting" also has break-in program, followed by a 3x15 fat loss, tapering down to 3x8 over the course of 13 weeks in two programs. There is a FLIII, but it's monstrous.

I'd recommend every third week you drop reps/set by 2-3, but increase the weight proportionately. This is supposing you have a good lifting routine.

If you're breand new to lifting or working out, it is important to start with lighter weights and focus on the proper form. Once you have a few weeks of form and posture and breathe and movement under your belt, I think it's okay to increase weight.

It's also crucial to warm up properly before each workout session. Never lift with cold muscles