I got a tattoo while I was high on paint and now I wear long sleeves a lot to hide it
Why did you think that was a good idea? Why hide it?
I'm afraid of judgment, I'm afraid of what people might think about it.
Getting high makes people think they feel good. You will do more things you don't really want to in real life if you continue to get high so get some therapy. Hiding things like tattoos are very immature and childish, face up to your own wrongdoings.
I'm not hiding it from everyone.
Have you ever though of getting a cover up? They might be able to change it into something more acceptable or interesting if you shop around.