Just love them
What beutiful young ladies! Don't dwell too much on your parents mistakes, you'll make different ones! As to activities, we started are duaghter with a 'creative movement' class at the local dance studio when she was three. She's 17 now and still dancing and loving it. She tried karate with my son and me (Dad) and did really well but decided she would rather dance. Get involved with a Church, most have great kid stuff mid-week as well as Sunday morning. Your whole family will benifit from that. Beyond that, Love them, let them try and let them fail, they'll learn to pick themselves up and that's a life lesson everyone needs.
Be well, and God Bless