Just run around and shoot people.
Eventually you'll get positive K/D.
Be nice to everyone you meet!
Firm headpat!
If you're feeling sad in vrchat just be happy instead and you will start to feel happy! 
You want that cute mute to be your vrgf just ask them directly right now. They WILL say yes. It's that easy!
[spoiler]Do an eco round![/spoiler]