Funny mole plz read and answer?

hello ... i am covered in moles to start off with and have lots of freckles on my face. I have been to the dermo and had cancer test everything came back fine but due to insurance issues i now owe the dr like $1,000 so i cant go back and now i have something strange happen. Let me admit i do go to the tanning bed (i know im stupid) but i got a little dry patch of skin over a mole on my arm and scratched it and so now it is a light purple color and raised ..im freaking out. I have stopped going tanning but the mole is weird (p.s. when i was going tanning of course my moles darkened like the rest of my skin and was kinda a blk color canase have some good advice.