A short nap, taking a bath instead of a shower, or even just not working nonstop all day.

always need the oxford comma :)

If it seems worthless, many people feel dread aboutdread it.

alternatively, "feel bad about it"

This pressure can be really hard to manage, so we often start avoiding these things altogether, even though they have benefits, just not. They just might not be the ones we would expect from them.

The original was technically correct, but it bordered on becoming a run-on sentence, and this sounds more natural.

But what if ithat's a lie?

Maybe it's just a big paperweight that puts pressure on our shoulders and chest, and forces us to scribble plans on napkins at breakfast or feel resentment if something wthat we do doeisn't materially worth it.

"paperweight" works if that's what you meant exactly, but reads kind of awkward and random. "weight" or "boulder" would be more natural:

"... a boulder/weight resting on our shoulders..." is how native speakers normally express this idea

That's whaty we never gain, we only lose.

But we cannot view it asbelieve that only actions with material value that are worth our time.

"But we cannot view it as only actions" technically works, but it's hard to understand and unnatural; this works better.

There are so many "worthless" things that we need to do, because they have immaterial benefits for us, our physical or mental health, or simply just because they are fun.

Maybe we should muster the courage to review our value system and free up some time for those things that simply feels good to us, because maybe they're the oneat's twhat actually recharges us.

Just made it sound more natural in the end

And maybe we won't collapse after a hard day like a sack of potatoes.

This works perfectly in terms of grammer, but would simply sound more natural as "And maybe we won't collapse like a sack of potatoes after a hard day."