How big is the endli in question? I'd say keep it, keep all the monsters you can now while you're living at home, because in a few years time you'll be discovering woman/booze/cars/college etc and will want to move out of home and won't be in a stable enough living situation to keep large tanks. I did it, had a 150g in my bedroom at home for a few years then downgraded to a 40g for about 4 years, then got an 80g when my gf finished studying, and now we've bought a house and won't be moving for a few years so I can finally set up a few big tanks.
Just a piece of advice from this old codger at the grand old age of 27...