GalaxyDreamer90,
It's ok to doubt yourself on issues like this. It means you are really searching for the answers from within yourself. And that's a good thing. After all the whole reason we are all here is so that the soul may know itself by it's own experience. As the physical plane is where we grow and unfold the most. Before I had my NDE years ago I never believed in reincarnation either as I was raised Baptist as a child. I did not believe what the church taught me. So I left at 13yrs old. For awhile I became an agnostic for a few years. But some how something inside me knew that there was so much more to existences than just this physical reality. Yet I did not know how to put it into words back then. However after I had my NDE all that changed for me as I realized that I had lived before as does everyone else as the soul is eternal. As I experienced for a brief moment cosmic consciousness during the NDE. And within that moment everything made senses to me. Since then I have had on again off again OBE's. Which I suspect was brought on by the NDE. When I do have them they are usually triggered by a lucid dream. When I realized I am dreaming it all then turns into a conscious OBE from there on.
However what you are asking is a personal inner journey only you can take no one else. You can listen to others who have had their experiences that helped them realize their true nature as soul. However in order for it to be real to you; you must have your own inner experience. How that will come about is up to you.
The only thing I can suggested is keeping a dream journal and record if you can any dreams you may have once you are awake. Because if you don't they will fade quickly. I used to keep one and what I found was that there is a pattern to your dreams and a connection to the physical world. As your inner reality (dreaming ect.. and outer reality are actually tied together. As our consciousness is multidimensional by nature. There are also classes you can take to learn conscious OBEs. Yes they do have them. However most people in the west don't have the patience's to practice the techniques they offer as our culture wants instance results. And like everything else this takes time to become conscious of leaving the body. We do this naturally every night as dreaming is really (in my opinion a OBE) however one in which we are not aware of being out of the body because we are to focused on what we are doing at the moment while in the fourth dimension. So if we can learn to link the two states of consciousness where there is no brake in awareness then one realizes there is no death. There is only a transition or shift from one reality or dimension to the next. At death the body is dropped and goes back to the elements of the earth and consciousness goes inward taking its experience with it while in life and centers itself within the astral body where we continue our existences on the fourth dimension of our universe. However most people never realize this their whole life. In my opinion they go to cradle to grave never knowing who they truly are as soul. So reincarnation is the process of how consciousness (the soul if you will) evolves and grows over time.
So its up to you to find a way that will work for you to discover the eternal nature of yourself as soul.
Good luck my friend and pleasant travels.
Love and peace P.