Hello everyone!

I've been thinking for some time about learning to fix computers, kind of started the trip already, since I learned to install operative systems, formatting partitions, learning the components of a computer, the types of wires, and so on. Still I've been doing this with some computers I've found on the street and my own, and still probably need a lot of practice and things to learn.

So I wanted to ask you two questions. Do you know of some good resource to learn to repair PCs? What kind of tools would I need if I want to earn some money from this and do it semi-professionally?

Thanks!