In this age, information and knowledge is present everywhere around the internet for free of cost. With the help of Google and Youtube, many people are learning new skills everyday for free. With some simple Google searches and Youtube videos, you will be able to learn a lot about those things. You can even read books or e-books about blockchain, website design, and github. as they are filled with detail information. You can also use sites like, Lynda, and Udemy, to watch some professional courses to learn those skills. With time and practice you will learn all of them even if it takes you longer to learn them then be patient and try you best to give those your time.