Some believe that we create our own reality and that all religions might be just as valid in their own way as any other belief system.
I’m sure that many people of different religions seriously believe the teachings of their religion. But I believe there are limits to the reality we can create through our own beliefs. Once death occurs, in my view anyway, which is based on the teaching of Jesus, souls will go to the spiritual kingdom they died belonging to, and after that there is going to be an eternal judgment and a resurrection of both the righteous and the unrighteous.
Why believe what Jesus said versus what Buddha said? Well, Jesus is better qualified. Buddha never rose from the dead, so he couldn’t tell us with any absolute authority whether reincarnation was real. Jesus has personal experience of death and resurrection. I think its smart to listen to the One with genuine experience when you are “betting your soul” so to speak.