Welcome to ADISC, Emigo. I hope you have fun here and learn to accept your fetish because it really isn't bad.
It's a shame you feel that way. In all reality, AB/DL-ism isn't bad at all. What's so wrong with pretending to be a baby and wearing diapers? It's not hurting anyone and it most certainly isn't an obsession (in most cases). It's upsetting to have to hide this aspect from most other people, but there are some things others shouldn't know. It makes it more difficult to find an accepting partner, but once you do, it feels good. Just be glad you're not something worse, such as a pedophile or a sadist. AB/DL-ism is really quite innocent.