As salamu alaikum. I started praying all 5 prayers two months ago. I've completely changed. I felt close to Allah, but a few days ago some thoughts came to my mind that I'm worshipping something also named Allah, but not the true one. That Muslims worship Allah, but my Allah isn't the same one.
I am so anxious as I am scared of committing shirk. I don't know if I'm a true believer.