How can I change my username??

Two answers, really:

1) Stop using the first account and create a new one with the correct username. It's important that আপনি stop using any পূর্ববর্তি account, as multiple accounts from the same computer will eventually get আপনি banned from the site. Since there's also no way to delete an account, আপনি have to settle for just not using the one with the "wrong" username.

2) Contact the ফ্যানপপ staff and see if they will accommodate আপনি in changing your username.

Aside from that, there's nothing আপনি can do.

I wanted to do it too and I think the only way to do it is to change your account remove your first account(there's a button located somewhere when আপনি সম্পাদনা your profile, actually it's been a long time so I don't remember), then just make a new account with a correct ব্যবহারকারী নাম like Harold told...

Me too....I wasn't thinking when I put this username....I guess u could make a new account..?

who knows?