A few years ago in my late 50’s, I started doing the Shirsasana for 2-3 minutes while waiting for the microwave in the mornings. I Now I am able to do it unsupported. I want to do advanced asanas, like hand stands, dhanurasana, etc., but find that there is almost no progress due to my stiff joints. After a lifetime of desk jobs, I am unable to sit on the floor for more than a few minutes. I was able to touch my toes after a lot of weight loss and some practice but I am amazed at all those people on Instagram who accomplish complex contorted positions in a few months after starting yoga and go on to be teachers.
Is it possible to do what I want to do if I am in my early 60’s now? I am a male, 5’ 7" and 165lbs - a bit overweight. How many hours of work is needed per day, days per week?