have you ever lost good opportunities bc of your social anxiety

college has always been a struggle for me, I would consider myself a drop out. whenever things get too stressful for me I just shut down and start avoiding everyone. I’ve been working on ways to improve my social anxiety bit by bit and now I have a new opportunity to change my life but I’m afraid that I’ll fall into old habits. sometimes I regret not using the time I had out of college to go to therapy. I feel like I’m at a loss when I’m alone… has anyone gone through anything similar? or has anyone gotten anything positive after taking on a new opportunity?