Hi I'm 18 years old and I have never been to the dentist in my life because I have always refused or said it wasn't necessary, i was scared. I've taken care of my teeth poorly in the past but I have recently been very very good about it. I know I have a few cavities and underneath one, on my gum, is a lump about the size of a skittle. From what i've read online it cannot be good, any suggestions or help?