I know everyone is different so if you don't believe like I do please don't insult me or anything but how can see or re experience or remember my past life if I have one?

That is interesting question. I have heard that under hypnosis this has occurred but not a guarantee of any fruitful results. Otherwise, there are many first hand stories of people going to a place and experiencing what is called "de ja vu". I certainly would not go to just any hypnotist. If you feel you must, please check out anyone that you choose carefully.
Good luck

Regression can be used as a powerful tool for the good or not so good.

It is awesome to feel and believe in past lives. The thing is I wonder if there is a reason why we do not remember them? Some people say they naturally do without any hypnosis.

Do not just go to anybody. If you want to get this done by all means do the research and find somebody respectable and that is very highly regarded. With much experience.

Good luck.