Man, I'm sorry... and No offense to all of your parents but they suck!
Just like mine.. My mother never let me get any animal. So now that I am a mother of 3 and living on my own I have decided that my kids will run the animal part. Thou no cats, dogs, bird basically nothing like that... but they can have a 55 Gallon and a 10 Gallon 'hospital' in their room when they get older.
My husband is allergic to animals, well technically the dander. So fish is all the kids will be able to have and I have decided that I will not hold back on them if they wanted to get more than 1 but I put my foot down if they want something bigger then a 55 Gallon for their room. Since I will be having a 80 Gallon in the living room and when I get the money and the experience I will be moving the 80 gallon to my husband's and my room and putting a 125 Gallon in the living room, but that will be a while since we are still renting. We want to wait on buying a big big tank till we are in a more permanent place.
But that does suck. Hope everything works out!