Arthur is correct and it is proper form.

You are changing from one muscle group to draw to another group to aim and that is detrimental to several things, one of which is repeatability. Try to get used to setting the bowarm in the aiming position before you draw.

BGFisher and BobCo have given you some wise words as well.

Alot of archers leave the sport because of those issues.

When it comes to paper and foam, they will never know the difference.