Help, and possibly offensive question

So, I’m a lesbian (duh as I get gems from this) and I have this friend I like. She’s not my best friend, like we don’t even text but I’ve known her for 5-6 years ( surprising I don’t have her number) and I’ve spent a lot of my childhood with her because my aunt loves across from her and my dad visits his sis at least 3 times a week if not every day of the week, so I hang out with her then. One day we were talking and she was laughing about something and I was she’s beautiful and then I was like wtf did I just say? So then every time we hung out I couldn’t stop staring at her like one day she was throwing cinderblocks in her backyard for whatever reason and she mowing the grass when I tell y’all I saw her muscles and I melted y’all 😉😬 and I was SHES so pretty and smart and funny and she’s good at sports and stuff. This led me down a tragic road of self discovery. It was tragic because I couldn’t accept myself, because that’s what I’d been taught, and I was scared. I accept myself but I am not out. I found out I was gay, but deep down I think, since I was 5, I knew. Anyways, this girl I like, acts like boy. Dresses like one, acts and speaks like one, hangs with them, hits harder than boys I know, and can literally beat grown men that be been playing basketball their whole life. So she’s a tomboy and stuff and I am too, i do sports and crap (track, soccer, a lil basketball but I’m not good at it she tried to teach me tho😂😂) I talked to her about it and I was like it’s cool if your gay etc, and she was like I act like a boy but I’m not gay, I’ve been asked/told similar things and I definitely wouldn’t admit to anyone I was gay, because people have big mouths and it’s my choice when where who what how I want to come out. ( a family member recently found out and is threatening to-out me 😬😭) and my help part is how do I really know if she’s gay? Like I’m scared of rejection. What if she doesn’t like girls? Then she may or may not out me and then it’d be chaos but I really do like her, what do I do?

For my possibly offensive question: for people that have transitioned from male to a female, do you get menstrual periods? This might sound stupid but if you transition from female to male, do you get periods too?? I’m really really sorry if it’s offensive, but I am curious, and if it’s offensive pls let me know so I can be sure not to make a mistake and do this in the future,

Thx for reading my life story please help!!😭🏳️‍🌈🤗👋🏽