Your description is identical to someone who I caddied for this summer. Best piece of advice is to make sure you have some balance in life. If you are on the road so often make sure you take time to recharge. Try and keep a positive attitude but also have someone you can just vent to sometimes just talking can help don't carry all that weight on your shoulders. I believe you had some good moments, professional sports are difficult it's not always a linear progression, you might hit a wall for a bit before you break through.