Get vaccinated, if you have not already done so. HPV, Hep A and Hep B are all STI's. It takes 6 months to get immunity in a series of three shots. And, the area that can transmit HPV is NOT fully covered by condoms, which is yet another reason to get vaccinated against HPV (there are two vaccines; the one I am getting is Gardasil).

You are so young - these shots should be covered by your insurance. Make sure you have done them all - you will feel better doing something to protect yourself, and not just ruminate and pledge long term celibacy.