I keep tearing my scar tisue 😩

TMI

I have pretty significant scar tissue on the side of my vulva and going into my vagina from tearing during birth, and when I have sex I get little tears in that area. It just happened again, I felt it split open as soon as he entered me, and this was after over a month of not having sex to make sure i healed from the last time. I was really wet, we used lube and he went super slow but it didn’t help. I’m 10 months postpartum and I feel like this should be better by now. This is so disappointing. It’s so uncomfortable.