I've had a problem for a few years, but I somehow passed the year during the first 2 years with really bad grades. I've failed my last year of highschool twice due to being very shy and socially awkward and every other term out there that makes it hard for me to talk to people

i cant start conversations and if someone talks to me, I usually try to finish the conversation fast and run away. It always ends up with me being the loner of the class who nobody talks to and nobody wants to do anything with, and I end up just losing all motivation to go to school and just start skipping school a lot. I've been stuck in this loop for 4 years. I'm starting my last year for the 3rd time soon. I'd like to finish school, but I feel like history is going to repeat itself again.