“Heartbreak sucks. It feels like you'll never get over it, that you can never imagine yourself being with anyone else. But that's your emotions playing a trick on you. It's not actually true.
Trust me, time really is a great healer.
You need to put one foot in front of the other and move on. Don't contact her.
Try and focus on things that don't involve her. Reconnect with friends you haven't seen for a while. (Your friends, not hers!). Do things you want to do that are for you.
Fake it till you make it. At some point in the future, this will be a distant memory, it won't hurt any more, and you will recognise that it was time to move on.”
This. For what it’s worth, I think what she’s doing is sensible. You got together very young and haven’t experienced adulthood as single people. I actually think it’s very important to spend some of your early adulthood single so that you know you can. I know cases like yours where the couple have reunited and cases where they haven’t but I can understand her desire to have some freedom from the relationship rather than just drift into settling down.
She needs out of your family WhatsApp group though. You can’t have her there. It will hinder your recovery.