help!!

i've recently noticed that on my labia there's a red lump and it only hurts if i touch it. i'm crying so much, i don't know how it developed and if it's an std (i haven't had sex in a month or so and it was protected even though condoms aren't 100% effective) but what should i do im so scared i googled it and it didn't really help either it just made me even more scared 😭