Spot on.

Only thing I’d change is when turning down an invite, act like you wanted to but can’t (even if the reason is you’re tired).

“Oh, man, I’d love to go, but I’m wiped. Need to get some sack time”. This may seem disingenuous, but it really isn’t - you’re not going because you need that recharge time, just phrasing it in a way others can understand, and making it clear you’d like to do such things in the future.