Before being a parent i tried to do as much net positiv things for my energy level as possible.

• Go for a walk in nature as long as needed to feel decompressed
• Do something creative (with which i struggeled a lot because of overly high expectations for myself)
• Some caring for the body (e.g. a bath, nails, skincare, whatever)

But now as a parent, i just rest as much as possible and try not to feel bad for doing so.