Use your doubts to challenge yourself

There are people who doubt that they can become Buddhists because they are easily overcomed by negative thoughts and emotions.
Nothing more wrong!
It is precisely this doubt that leads to the demand of Buddhism.
For people who are easily overcomed by negative thoughts and emotions, this doubt certainly corresponds to a inner challenge that opens the inner mind and that should defenetely motivate them to inner growth.
Buddhism never appears out of nowhere.
Take a look at Siddhartha's own example.