[Max]

Upper body position and draw is probably one of the hardest things for newcomer to master and even harder to fix, if bad posture gets embedded with practice. The problem is that the body reacts naturally to the draw forces and uses the muscles it is most comfortable with - often these are the wrong ones for good archery form. The bigger the draw force, the harder it is to feel for the correct muscle position. One of the worst things a new archer can do is to go for a heaver bow too soon, before good posture is established.

Go to the garden centre and buy a whippy 5 - 6 foot bamboo garden cane and string it like a longbow - it will only have a few pounds pull but that is what you want. If you have no-one to help you, practice drawing, anchoring and loosing in front of a big mirror, or outside against a patio door where you can see your reflection. It can feel stupid, but if you are mainly working on your own, it is probably the best way to discover good technique.

Intersperse this practice with shooting your real bow, while trying to feel for the same muscle positions. Ideally, you need coaching through this stage, but it will speed your development no end - I still use one occasionally.