Does one need to use my real name on OnlyFans?
You should probably stop referring to yourself as ‘one' :D
Your nickname is your online identity, it can be your real name or something completely different. Whatever you choose it is how you want to be identified, and names stick so choose wisely!
Keep in mind if you become famous that this will turn into a brand, something you will want to be proud of and can last a long time (think of political correctness forever changing)