If you are worried that you helping them will harm them or make them "not learn their lesson" so to speak.
That is why I use the "pit stop" technic. Getting rid of a bit of their stress and maybe offering some motivation is always nice and won't harm them, and it might help them face their problems better.

If you are not looking into the "root" of the problem it very possible that they will continue getting full of negative energy no matter how many times you relive them. But if you want to help them to get rid if the "root" problem then i would recommend asking them or offering yourself to help them. Because if you try to help without their permission you could do more harm than good. If they don't want your help then the best thing you can do is just be there for them and not judge them.

This is is what I personally think. I'm not an expert in this subject at all but everything that I have written I have done it and experienced it myself.