Hello ladies

I'm really needing input. I'm 42 so time is of the essence. I had my first ivf fet baby last August. I had a c section from failed induction failure to progress past 6. And they said he would not fit. I was really wanting to try for a vbac bc I learned alot and have tips for next time. Do I need to wait 18m to fully heal though? I'm worried about uterine rupture. Will a dr let me try vbac before waiting 18m to get pregnant? Also what do you think my chances are? All info appreciated greatly! Anyone have a failed vbac?