That doesn’t sound like it needs grounding as such IMO, that sounds like an energy thing, obviously there are ways to build energy before ritual and those are covered in a lot of places.
I have all this stuff I did on the physical side to prevent that drained feeling after doing heavy work (what that is changes as you yourself change), it may or may not be useful.
The tl;dr summary is to eat a fat and sugar combo like ice cream before heavy work, then some coconut oil (start with 5g) after, obvs. barring health problems/other issues:
And/or extrapolate from that what may work for you of course. 