I am trying to overcome my Uni student mentality : "This shit is amazing and it's free! Great, because I don't have any money...." But now I have some money. I

I am trying to overcome my Uni student mentality : "This shit is amazing and it's free! Great, because I don't have any money...." But now I have some money. I am not mega rich but it is time to give back, if not in time then in $.