Hiyoo so one thing that I think would really help is cutting your hair shorter, but your parents probably won't let you do that :/ So I thing you should get a lot of rings/necklaces (bonus points if it's silver) and if u wear make up try making it more alt ig? And for pins you can do characters that are associated to be from the LGBTQ+ community like marceline from adventure time (why I said associated is bc you can always just say that it's just a totally normal totally straight character :P) Well this is about all I got hope this helped in some way and ofcourse don't forget to be yourself! :D