do some work outs. Your draw weight is pretty high for your size. Just do some pushups, or a rowing machine. Anything that will work out your shoulders/back/triceps. workout one day,take one off, workout, day off, and so on. for pushups or shoulder exercises do 12 reps, wait 10 seconds, 8 reps, wait 10 sec, do 6 reps.

you will keep getting stronger so once that is easy do 18 reps, then 14, then 12. good luck.