There is no one fits all answer to this one. It entirely depends on your body type, your lifestyle, the time you put in and a zillion other factors. Just be aware that these programs are not designed to be graduated within a few months, they will rather be guiding you through learning how your body reacts to handbalancing and flexibility training over a few years.
Best is to not to care how long it takes, just trust the process and do the thing. You’ll get there eventually. Probably faster so if you don’t care and just enjoy the process.