keep going

verb3

1. •
   To continue functioning; to maintain.

   • The grandfather clock keeps going for over a week without winding.
2. •
   To proceed; to make progress, physically or figuratively.
3. •
   To see that (a person) is continually supplied with something, or that they can progress or carry on.

   • I didn't think I could run any longer, but fear kept me going.
   • I'll put all this meat in my freezer, and it'll keep me going for many months.