Can learning Buddhism make you strong inside? Can inner fears be changed by learning Buddhism?

Of course. Because Buddhism is an internal learning, it is an education that makes people introspect, understand the relationship between people, the relationship between people and the natural environment, and change mistakes. It is important to use Buddhism and practice it according to teaching, otherwise it will only increase your knowledge and not get the real benefits of Buddhism. The greatest fear of mankind is the fear of the unknown. Once you know the truth of life in the universe, you can control your thoughts with Buddhism, and there is nothing to be afraid of. Buddhism reveals the universal law in the universe, which is called "law of cause and effect". If you know what causes what, you won't get bad consequences if you don't create evil causes. If there are many good things in life, you will naturally stay away from fear. The best way to learn Buddhism is to start with the book Enlightenment. Only when you know that Buddhism is a kind of awakening, and Buddhism is an education that reveals the truth of life in the universe and obtains a happy and complete life with wisdom, will you not take detours or even go astray in the learning process.