How do I stop projecting my self hatred onto everyone I meet?

I am working on self love at the moment and have improved a lot since starting therapy. Unfortunately, I haven’t been able to afford a session over the past couple months so I’m hoping to get some answers here. I’ve noticed alone I feel completely confident, no overthinking, no self doubt. But the second I’m around others I revert back to extreme self hatred and I know others pick up on it. It’s making me feel like I have to isolate until I fix it, although Idk that this would actually be helpful. Any advice from those who have overcome similar would be very much appreciated.