Just want to recommend these excellent free yoga classes for anyone that hasn't come across them - there are two 30 day courses, "30 Days of Yoga" and "Yoga Camp" as well as many other videos. Emphasis is on doing what's right for you and finding what feels good. A great way to tick the "Strength" box on your 12 year weight loss journey chart. Find them on youtube on the yogawithadriene channel.
I'm doing 30 Days of Yoga at the moment - on "Day 5, Feel Alive!"