I need some advice for girls

So I'm 13M and I have this friend who's a girl (13F). I really like her and I wanna date her — I want to ask her out. The problem is I'm really nervous about it. We are gonna hang out soon (I'm hoping), but I have no idea what we will do or anything.

I'm also not sure how to text her. I don't know how to start a conversation or keep it going. Sometimes she will take super long to respond or... not even respond at all. That makes me wonder if she likes me or not. But I think we are pretty close, so I'm not sure.

I just want advice for all this please 🙏

Specifically:

How do I start good texting conversations with her?

How do I start a conversation over text and keep it going?

How do I start a conversation in person when we hang out and what should we talk about?

How do I keep a conversation going (both texting and in real life)?

What are some fun and chill things we could do when we hang out?

How can I tell if she actually likes me back?

How should I actually ask her out without it being super awkward?

Any tips would mean a lot. Thanks!