I have a question.... my story is kinda long...

So I'm 18 turning 19 in a few months.. I first got pregnant when I was 14(please don't judge). My pregnancy was great till I was 7 months were I got preeclampsia(idk if that's how you spell) I had my son at 33 weeks. Due to being over 12 hrs in labor and dr had already popped my water and I only dialated 5 cms I had to get an emergency c- section. It's been 4 years and I really would love to expierience viganal birth. Can my c-section be fully healed by now from the inside?? Is it still to early to try ?