Scared to meet ppl

i think my social anxiety worsen after lockdown, i remember last year there's social event in my neighbourhood and my parents forced me to go. i met with other ppl from neighbourhood but scared to try and talk to them so i just stood there doing nothing after a long time someone tried to talk to me but suddenly my mind goes blank idk what to answer then i finally answer her with stutter, i think she notice me being weird she tried to check my forehead but it startled me and i accidentally slapped her fortunately she doesn't get mad and thought that i was just sick. after that i don't go out for months because ppl made rumor out of it.