I've looked up the symptoms and I think it's possible I have a Bartholin cyst. I'm too scared to go to the Doctors because I'm only 14. Is there anything I can do about it at home?

First STOP with the internet self diagnoses, it's very dangerous.
If you have any health concerns then an examination from your own medical practitioner is the ONLY way to clear any doubts and get the correct treatment as needed.

There is no reason to be scared! Why are you?