I don't know if I belong here but i want to vent a bit

I don't know if I belong here but i want to vent a bit Ever since I got Depressed due to Problems in school and a mother that didn't care, I've gotten extremely reserved and stopped having normal conversations to people. Then I self medicated with weed for two years and stopped talking for 2 more years. Now I've gotten better, I'm no longer addicted and my depression is also gone. But there's one thing that I developed over the years that I just can't get rid off. I get nervous around people easily and this leads to me not being able to put together basic sentences and stumble over my words A LOT. I think it might have to do with my self-esteem being very low. It's just so frustrating that I know that I'm not fucking stupid and in fact able to speak just fine but every time I speak with someone who i don't feel 100% safe with, i start stumbling over my words and stuttering. (I'm 20 years old and from Germany so my English might not be on point 😅?