@beatricefay As a former yoga teacher, I would tell you to keep strengthening your legs by standing from a seated position on a chair and couch. It's hard work! At first you can use your arms to help, then try standing from seated without using your arms. Once you feel comfortable doing that, and it may take weeks or even months, practice getting up from the floor close to a stable chair or couch, then from further away maybe using a cane or strong walking stick for greater stability.