Overbowed

Wanted to get into archery with a recurve that I could take hunting. Ended up buying one with 45 lb limbs and realized quickly that, while I'm strong enough to draw, I definitely should have listened to everyone and gotten a lighter draw weight to learn form and avoid the current back/neck pain I'm dealing with.

Outside of buying new limbs, what is the best way for me to remedy the soreness and learn proper form?