What keeps me believing in Allah SWT? Well, think about space exploration. Scientists have figured out that space is this huge, vast, place, and we are just a tiny piece of the universe, not even mattering in the whole sceme of things. How are we the civilization we are today if we are just this little spec? How are we alive if we are just this little spec? This is what keeps me believing in God.
Secondly, if you look at all of the religions, you will find they all have something unique about them. like, Christians believe that Jesus PBUH is God, Hindus believe in reincarnation, Buddhists believe in rebirth, Jews believe there is going to be a Messiah, and so and on and so on. But Islam is the only religion that just has one God.
And while the other stuff is important, the most important is Allah SWT and to worship him!! Nothing else!!
Plus, all of the Miracles of the Quran...
feel like it is undeniable, and of course I understand that might not be enough for you, and I am sorry about that :(