I started messaging a girl I met online before school started and it's been like 5 weeks I see her sometimes at lunch I want to talk to her but don't know how and I have her in a class

You walk up to her and say "hi" ask her about things she likes, if you are chatting with her online or texting, you have to know something about her.

You go up to her and say "HI". It's that simple. You can chat with her Online is that not how you met?

Yes that's how

You have two choices here... walk up and say hi, or make plans to join a religious order and prepare for a life of celibacy.

Then do it again. But are you serious. You have posted about 3 different females so far today
https://www.askmehelpdesk.com/teens/isi-wondering-if-its-ok-have-crush-friend-thats-dating-someone-802517.html (https://www.askmehelpdesk.com/teens/isi-wondering-if-its-ok-have-crush-friend-thats-dating-someone-802517.html)

https://www.askmehelpdesk.com/dating/ok-18-year-old-guy-date-20-25-year-old-girl-802512.html (https://www.askmehelpdesk.com/dating/ok-18-year-old-guy-date-20-25-year-old-girl-802512.html)

I started messaging a girl I met online before school started and it's been like 5 weeks I see her sometimes at lunch I want to talk to her but don't know how and I have her in a class

Is this the 17 year old with a boyfriend? https://www.askmehelpdesk.com/teens/isi-wondering-if-its-ok-have-crush-friend-thats-dating-someone-802517.html

Since you know her from school, I will guess/hope it isn't the 25 year old. https://www.askmehelpdesk.com/dating/okay-18-year-old-guy-date-20-25-year-old-girl-802512.html

I highly suggest you slow down and stop running from one female to another (if you are.) It makes you look like you are thinking with your hormones instead of your brain.

Do you actually talk on-line? Has she seemed like she wants to get to know you better or is she being nice but not overly friendly?

I have a hard time talking to girls

Celibacy is a good option at this point given the other threads Homegirl 50 and Cat1864 have mentioned.

Because if you are doing that... word WILL get around (girls DO talk to each other). You will eventually become a Pariah when it does. It easy to get a bad reputation....and very, very hard to lose a bad reputation.

I don't know a 25 year old I was asking

No it's not the 17 year old

I'm handicap by the way

I'm handicap by the way
Do you think that matters?

Are you using being handicapped as an excuse not to be friendly, and JUST talk to girls? Make some friends, male and female, and be more comfortable around people.

Your being handicap should have nothing to do with your talking to people. The more you do, the more comfortable you become. Stop thinking of every girl as a potential girlfriend and just get to know them. Allow them to get to know you. Things will progress as they will.

I know being handicap has nothing to do with this I just think sometimes I might get rejected or judged because of it it's just fear I'm trying to get better

Just keep doing it. Practice and experience make perfect