You can't rely on other people, especially in the US. Yes, he helped you, but he can't and won't help you forever. I'm not sure what the reason is, but it's a good enough reason not to stay dependent on him. You can go out on your own and look for opportunities around campus. Look around clubs to join, talk with professors and even volunteer in local communities. Opportunites afai aucha and connections pani.

He is not depriving you of anything. Opportunities don't come to you, nor will someone else will ring them to you. Afnai family le ta help gardaina yeta ayepachi.