Welcome to the best sport know to man! When I first started competing I noticed that it took a few days to recover. I work in the medical field so I decided to run some tests on myself to see what helped. Advil is your friend for long days of throwing. Also make sure you stretch.... your rotator cuff is delicate. I tore mine about 2 years ago at work so I do have to be carefull. If you throw a little bit every day, not to the point that you hurt, just enough to excersize, that will make a big difference. Get a heating pad, or better yet, thermacare makes heat wraps that go on the shoulder and give a good, deep heat for about 6-8 hours and they can be worn all day under your clothing. I have found that if you have a target store in your area, there is a target brand that is half the price and seems to work even better. Good luck with it but make sure you don't give up!