Yeah, I don't either. I wish I could believe. When I was younger I did - at least the traditional Christian religion and it felt better. Why wouldn't it? If you truly believed all rights would be wronged and you were going to live forever with the feeling of an eternal orgasm - hey that's a decent deal..I think beyond so crass an expectation(!) there's also the more sublime aspect of being able to see lost ones again and continue your family..very human concerns..
But my believe is not under my direct control - at least as an honest venture. That's what's weird about some religious people who insist that you believe "just in case". You can't "just" believe. If you are honest (and not one of those people I described who say they don't believe but actually do) about the information you have - you don't have any say in what the result is. You can't force a belief, it is something that is "given" or perhaps a better word to co-opt a religious term - revealed
to you by the processes in your brain that deal in logic and information. You get info your brain puts it together with other known info and then you are presented with the outcome - which you can use your ability of reflection to mull over, throw back in the mix with perhaps new information (that the original comparison did not account for) and get re-presented with whatever logical outcome your experiences will give to you..*
This actual process is poorly understood - probably not understood at all really since, being an unconscious process we don't have direct access to it. We can only describe it generally.
*As I mentioned, there is an element of honesty here. Your "brain" (you can substitute mind if you like) will not give you things you can't handle. Hence the caveat of honesty. However, some times, that dishonesty isn't even conscious. So, its not that a person is dishonest, its just that those unconscious processes will not give/present/reveal the correct conclusion to the individual (based on their experiences and the brains internal logic) because to do so would be too painful..