idk if i have anxiety and what to do

hi, im a 15 y/o female and i think i have anxiety. my dad also has anxiety and he used to or still takes medication for it. i take after my dad alot in some or a lot of ways and i think anxiety is one. i look up signs of anxiety on google, tiktok, and anywhere i can get info about it and for alot of the symptoms i have seen, i can relate to. i know that just because google says feeling anxious if a symptom of anxiety doesnt mean i have anxiety but i feel like i actually do have it. the main thing that has been affecting me is sleeping. ive always kind of struggled with sleeping and i sometimes/a lot of the time take over the counter melatonin to help me sleep if i need to wake up early the next day. but i dont really wanna get my body used to it. almost every night i struggle to sleep no matter how tired i am (currently typing this at midnight) and i always end up falling asleep around/past midnight which makes me tired the next day. theres other things such as shaky hands, random hard feelings of anxiety when nothing is wrong, constant racing thoughts, etc. i dont know if im just like overthinking it but it bothers me on a day to day basis. now the next thing is that i dont think my mom in a way doesnt believe in mental illnesses such as adhd, depression, anxiety, etc. which is kinda stressful because for me i get nervous to tell her things like this because i feel like she wouldnt try to understand how im feeling. i want to bring it up to her tho because i want to be able to sleep and be able to do things i enjoy that require steady hands, etc. but i hate bringing these types of topics up to her because i worry she wont understand. thats probably another sign of anxiety but i dont know. what could be some essy ways to bring this up to my mom? i dont wanna just go up to her and say like "hey mom i think i have anxiety take me to get tested for it" or something like that. i wanna be able to subtly bring it up without feeling too anxious or awkward about it. one last thing, if i do manage to get her to understand, where would we go for me to see if i do have anxiety or not and see what i can do to help myself with it? tysm for reading this huge thread and i would really appreciate any advice any of you guys have! now im gonna try to fall asleep! thank you!:)