Hii, welcome to the forums~! Nice to meet you. :3
A couple of things, please remember that if you need to add something to a previous post and no one has posted after you, use the Edit button located under your post instead of double posting~! I merged the posts this time, but I would very much appreciate it for the next! ♥ But yeah, if you made a signature, did you remember to save your signature/confirm it? It happens a lot, and that's why it doesn't show up, but otherwise, make sure that you checked that box where it says 'show your signature' in the text box when you're replying to a thread, mmkay?
Anyways, I hope this helps you! I do hope you'll enjoy our forums, and I really do look forward on becoming great friends with you! If you need a hand with anything, contact me anytime and I'll be happy to help. Have a lovely day~ <33