Fred Ashbels Instinctive Shooting book is good. I dont use his style but there are a lot of good pointers in the book. More than anything it makes you think of what you are doing. When you have bad days, and you will have bad days, it helps to think about your shot sequence dont just keep slinging arrows. Try to figgure out what is going wrong. My shooting improved (and I am no great shot by any streach)when I could, after shooting a bad arrow know what probably caused it and correct it on the following shots.
With that said,when I picked up a recurve my idea was to shoot one deer with it. Thats been about 15 years ago and never took a compound to the woods again.
Good luck...Mike