my mental issue and my obligations as a Muslim contradict

assalamualaikum warahmatullahi wabarakatuh so i want to ask, I'm a teenager Muslim male, but i, for my entire life i rarely pray at masjid because my social anxiety, im afraid to meet another people and it's really hard to overcome it, but regardless i still do my prayer at home, so am i sinful for not praying in the masjid? People told me my prayer is valid but I'm still committing a sin by not going to masjid even though im physically well, but like i said, im really afraid of meeting another people or talk or just look at them, i still do my Friday pray at the masjid but even then i still am feel uncomfortable being around a lot of people, this really affect my social life, but i don't know what to do I hope i can overcome my social anxiety, but for the time being, is my prayer still a valid but sinful pray? im sorry im not that good at English but i hope whoever reading this get the point I'm trying to say wassalamu'alaikum warahmatullahi wabarakatuh