How do people keep track/keep motivated when it comes to their health?

Lockdown has been hard on everyone, and I've become very aware that my physical and mental health is not quite where it should be. My sleep schedule is also pretty out of balance as I can basically get up when I want (working from home - SWE).

Has anyone here thought about, or taken active steps, to improve their health during this period? And if so I'd love to hear your experiences, and any helpful hints!