It's hard to believe in a god because it just seems too good to be true. A god that cares for us or is at least personal and good? Life after death with cosmic justice?
If we didn't live in this life, then this world would be too good to be true. I know by definition it isn't too good to be true since it is true, but you get the point. Imagen telling a child in a womb of a mother about this world. Talking about trees, and water, and mountains, and food etc. It would sound too good to be true.
It's hard because you just have to believe it because you want to. I don't want to, so the lack of evidence becomes overwhelming.