be back on (one's) feet

1. Literally, to resume standing, especially after a fall. I was nervous when Timmy fell off his bike, but he was back on his feet in no time. That was a nasty fall—you probably shouldn't be back on your feet so soon if you hit your head! Come on, she's a toddler—she'll be back on her feet in a second. Falling down and getting back up is just part of life at this stage.

2. To be in good health again after a period of injury or illness. Jill is happy to be back on her feet again after her hospital stay. Yes, I was sick earlier this week, but I'm back on my feet now. Have you talked to Aunt Nancy since her surgery? Is she back on her feet yet?

3. To no longer be in a precarious financial situation. Now that I've paid off my credit card debt, I feel like I'm finally back on my feet. Is Ray back on his feet these days? I know he lost his job recently. We racked up a lot of medical bills after the accident, so we won't be back on our feet for a while.