Cutting parents off

Well the title says it all mostly

To give a short run down my parents were neglectful abusive drug abusers. my mom is a straight narcissist ( she’s been diagnosed) an my dad was outright emotionally an sometimes physically abusive.

I had been debating cutting them off from my life for some time and finally today I did it. I just blocked them on everything, completely went ghost. I’ve tried to do this before and quickly ended up talking to them again which made me miserable

If you’ve gone through this can you give me some tips and advice.. encouraging words. I know I am making the best decision for me but it does hurt a tiny bit.