I need advice pls

there's not really anyway to know for sure honestly... but the one advice thing I can give is just try things out? test out how different pronouns sound and feel, test out masculine or different style clothing, and maybe even invest in a binder? (binders can be pricy tho so no worries, you're valid!). you can also watch lotsa videos and stuff. at the end of the day tho, you're young and got lotsa time to experiment and figure things out xoxo

Ask people to use he/him pronouns and see if you like it or not!!

You may feel that your body is not the way you are. I don't know how to explain it, but you just feel like you and your body are disconnected.
You may feel uncomfortable with someone calling you a girl and feel triggered by someone using wrong pronounce on you. You can have body image issues because of something that is signed up to gender you were born as. I hope it helped somehow ( ⓛ ω ⓛ *) idk how to explain stuff