The point of living is to survive to reproduce. If your dick still works, there is still a chance that you can find someone and mate. Killing yourself is conceding the evolutionary game just because you are losing. Instead, just try harder. Sure, you might never succeed. But, at least you would have tried. If you don't try, your chance of being an evolutionary failure is 100%. If you do try, maybe it is 99.99%, but there is still a fucking chance. You can't predict the future. You may come into some money. Perhaps something will change for the better. You really do not know. It could be worse too, of course, but living and trying increases your chance of reproduction more than killing yourself and removing yourself from the pool.
I have often thought about killing myself. For me, I will look at the optimum point in my life when I have virtually no real chance of success at reproduction. So, if I became sterile or if I became very old, and there were no hope of me attracting a fertile mate. I would then likely kill myself since the extra suffering would outweigh the chance of success. If you are still in your 20's or 30's, there is no reason to even be considering this option. There is still a lot that could change in your life.