Lip picking/biting

So I have had a bad habit of lip picking and biting I had braces from age 11-14 (I’m 25 now). I changed orthodontist when 12 and he asked more questions than my previous orthodontist he asked if I bite my nails I said yes and at that time I didn’t bite my lip, but he did something to fix that issue, so nail biting was out then lip picking and biting starting kicking in, I guess my question is, does anyone have any advice on how to stop from lip picking and biting?, I use to do it because I like the burning feeling from the minty chapstick I would buy and then I tried just regular chapstick and still would pick and bite so I’m out of ideas please help.