I’ve learned that everyone has a need to make sense out of life and wants to find a way to relate to, adjust to, or manipulate whatever/whoever is behind it all. To me, those who see that cause as a loving and personal being tend to reflect that attitude to the world.
I think one is best able to study religions if one has made a commitment to one of them. Then you have a place to stand while you look at the others. You can see how they differ and how they are similar. You can bring an emphasis those of another faith put on some value and bring it into your life or you can step over and accept that faith. So, as a Catholic, I can appreciate a Buddist reverence for all life and put more emphasis on that in my life but I cannot not accept the idea of reincarnation.
IMHO if you make up you own religion by picking what you like from each, you miss the point. It is not a faith, it’s just a muddle.