Help please

I’m 16, I have awful social anxiety, and I’m not good at speaking at all, it’s because I’m always on my phone and my phone does the thinking for me. If someone random comes up to me and says hi how are you, I just shut my brain off and let my mouth control things like for automatic responses like “I’m good” and don’t ask them back and just want to walk away. I zone off a lot and don’t think of anything. I feel like I’ll never find a boyfriend; I’ll admit boys like me at school (I’ve been told). Im not normal and I feel like im in a simulation. I don’t know what to do to fix this, is this normal for teenagers? It’s hard for me to have fun not to mention I’m on my room ALOT but today I went out and about in public with barely going on my phone but I found myself being super anxious and kinda talking to myself. I was diagnosed with depression and anxiety but I’m seeing a therapist but I don’t see her for a while, please someone help me