Draw weight is a biggie. I started out at 35 pounds, but I am female and do not have the muscle mass of a male. I now shoot 65 pounds easily which blows holes quite nicely through tough old warthog boars.

I've killed plenty of white tail deer at 50 through 60 pounds. Deet inmy are average 180 pounds or more. They are corn and soybean fed monsters.

When you actually get in to shop for bows try pulling on a variety of weights. You will get much stronger as you go, as long as you practice a lot. Do not get into archery if you cannot or don't want to spend time shooting. You need to do this, repetition is key. I would not worry about spindly arms, hell, if I can shoot 65 pounds then you will be able to do that at minimum too.

I don't recommend fingers on a compound bow for release. Go with a mechanical. It's just like shooting a rifle trigger and it will feel very natural to you.