I know Islam is the right religion. But i find it very difficult to accept tawheed. I try constantly and when i get a good faith, Bad thoughts comes into my mind constantly. Especially thoughts of shirk until my faith is depleted. The process continues. I believe in tawheed by pondering over solid evidences that we can see around the nature and the history of prophets. Now, i doubt that i am doing something wrong in my practice. Is this the right way to believe?