I have had a lump for seven years

I have had this lump for seven years. I am now 17 year olds. I have spoken to a nurse online on this website and they said the symptoms match something of a cyst which does make sense as I have had this lump since I was around ten. It is movable and doesn’t hurt but it is on the outer side of my vagina underneath the outer skin closer to the pubic bone. It’s underneath the skin and you cannot  see the lump if you are looking you have to feel it to know it’s there. I don’t know what it is but I can’t get it checked out due to fear so if anyone has any ideas please help