How long did you wait to conceive again after c-section?

Hey!! I just gave birth via c-section. I’m wondering how long you waited to get pregnant (conceive not birth) since your c-section? Dr. Advised to wait a year but I am in my later 30s and want to give my daughter a sibling asap. For some other reference, I had an open myomectomy just over a year ago where I had basically the same exact procedure as a cesarean performed except that I had a fibroid removed and not a baby. I was cleared to start trying for a baby 3 months after healing from my myomectomy (healing time is 6 weeks, same as cesarean) so wondering why I would need to wait longer after a C-section? My myomectomy for fibroid recovery was a lot more strict compared to healing from c-section (allowed to lift more this time vs myomectomy, plus recovery this time has been so much easier) thanks for any advice in advance!