I'm seriously struggling

I just. I can't.

18f. I'm in university. And I moved to be closer to it. (Commuting was killing my mental health). Buy I'm struggling soo much with making friends AND homesickness. I miss my mom so much.

It's my second semester. It doesn't help that it's a male dominated field and I just by the love of god do not know how to make friends with guys. The ones I've kinda had on the first semester ended with them asking me out.

I just want a female friend group. I swear that could skyrocket my mental health because now I'm seriously struggling.

I don't know how to approach girls that already have a group and ask them to be friends and eat together.