confused and doughtful

i really dont want to put my name out there but here is what i am going through.....
very recently i noticed a little bump/sore under my tounge/bottom of my mouth and i had no clue what it was and i am still unsertain of what it is but i showed someone and they said it looked like it could be herpes. i did start to do some research and i think it is posible becuase i did hook up with a guy before that. i am just very unsure because i only have one and it doesnt hurt or bother me. and i dont even know if you can get herpes were mine is. i have no idea were to star i am going to be a sophmore in high school soon and i was looking forward to falling in love with guys and finding out what to do with my life and now it feels like it all went down the drain after one stupied decison i cant have a love life in high school unless i am sertain it will last with the guy i am with and i am never going to be sertain.

if anyone has any advise or comments i really need something, anything to help me know what to do.