IMO, it's always better to try. Worst case scenario is that nothing changes, so no worse than if you didn't. The only sane choice in that kind of situation is to pick the one with a chance for improvement.

In my experience, giving a shit about what you're doing has a bunch of positing knock-on affects as well. You just end up feeling better about yourself. In your specific scenario it sounds like trying would also afford you the opportunity to live a happier life, and that's worth chasing. The world is fucked, by scientists keep saying they if we act soon it's not so fucked they we're past the inflection point to un-fuck it.