What Are my Chances of Keloiding? Can I Re-pierce and Get Surgery and Minimize Keloid Chances?

My original piercings from childhood never scarred but the second piercings I got after puberty (around age 14) were ripped out of my ears and resulted in keloid scars. I have since gotten tattoos and a naval piercing, neither of which resulted in a keloid. I had a c-section with minimal scarring. I'm wondering if I can reopen my original piercing in my ear without a keloid? I also would like to have a breast lift in the near future but am concerned about keloids on my breast.