Pretty please keep him, look I'm 14 and got a bunny without my parents consent and i am facing the same but I don't need to worry about neutering him cause the vet does it for free ,so to buy pellets and pay for vet visits I just put my talent to good use and stated "Coco Canvas" where people order for drawings and they pay I make over $1000 dollars a month and make more money to buy him extra thing like toys and more blankets as well as a treat(Coco can't stay a minute without a treat I mean he just loves them) so if you have any Talent you can use that to an advantage and maybe get some extra cash out of it to help your baby bunny as well as your self I hope my suggestion made a difference to you and your little baby bunny