Hi TheLonelyChemist. I am sorry you feel trying is pointless.
For me when things get very challenging is when I realize that life is not happening the way I expected it to. It is almost like I am trying to predict which way the river will flow. It just flows and I have not control of it, but it still flows.
For me the reason to get out of bed in the morning is not simple but I have a routine and it defines my life to some extent. I guess I prefer the certainty of being alive to the uncertainty of the unknowns of not being alive. I think if I reach some person, any person, and they feel a little joy or comfort, then that is the point for today. Maybe tomorrow will be something else.
Mindfulness teaches us to focus on the breath or the senses and avoid dwelling on the self fulfilling prophesies of the mind. If you are interested there are some short videos here.
YouTube