Yes. In practice advice from others tends to be hard to follow because there isn't as much motivation compared to you discovering the wisdom to follow by yourself.
If you feel this way, then perhaps the follow up question would be: what else were you expecting? After all, its a bit unfathomable to imagine an easy solution for your big problems.
Constantly feeling really shitty is usually caused by some kind of negative feedback loop. If you are aware that you are deeply entrenched in a negative cycle, then you have to find some way to break free of it.
imho this is why the "this too shall pass" or "take a vacation" approach isn't always good, because typically what will happen is that you will return to the very same environment that induces such a negative cycle.
Something that I would used to do is to seize some opportunity to do something different that day and see where it would lead me, even if it seems a bit pointless at first. (but don't do something different for the sake of being different! you gotta "want" to do it!)
Most importantly, if you know an approach can make your situation less shitty, than start the change now! You will only feel more shitty if you know you can change it but didn't do so because of lack of motivation. In this sense, the most rational thing you can do now is to implement the change you know will help your situation.