Its myth, learning Selenium is not tougher than learning other things such as speaking and reading in a new language. Or playing a new musical instrument. Or driving a car. Or playing chess. If you think that it is difficult because it is different from everything else that you already know. As soon as you can come up with a plan of learning it (and programming), you will not see it as tough to learn. To be able to work with Selenium, you need to know the programming language.
So focus on this. It does not matter how you do it. You can take the following Selenium Training Course, learn from a book or free Selenium Tutorials. Or I am mentioning a video tutorial link you can also choose it to learn Selenium. .