From my observations, this age bracket for your coach(s) early 20's to mid 20's is a hard nut to crack when it come to making new impressions. This age group seems to value the winning edge and familiar player pools a lot. Not that others don't, it just seems that relationships are - were, part of their life, and recently at that.
The suggestions that you've received thus far are good ones. On the other hand, it's hard, if not impossible, to shift the concentration of attitudes by others, especially when those attitudes are no in step with yours.
I will give you credit where credit is do. At 13 years of age you're now seeing how life works, in ways that are new to you, if not for the first time, a repeat of maybe other things that haven't gone your way. Just be careful on how you approach these young men. Remember, at 13 years of age there's only 12 years separating you from these young men. They have a lot to learn about the team and game management, as do you. So, time your approach carefully. If you sense any indifference or sarcasm by any coach, to your approach, back-off ASAP.
Get back to us and give us your experiences beyond this point. I ask this because your experience at 13 years of age is not all that unusual.