To be successful you have to be resilient. you have to take the bad with the good. You have to realize early on that life is not fair but if you have talent and determination things will eventually come around. The big thing here is eventually.
it is going from one level to another. I remember when my son was little league age there was this core group. they were the all stars the tournament team etc etc etc. some went on to play high school college but there were many that things sort of caught up to them. they no longer just showed up and had a spot. They had to compete. Now you go to HS and there are 4 or 5 guys just as good or better. Before everybody told you how good you were now you had to look over your shoulder.
this is the change you have to make. Talent is talent but what you do with it and how you handle competition is the measure of who moves on and who does not