!! Senoufou, you're doing brilliantly if you can manage life with a computer without using copy\paste.
It's a lot harder to describe and understand in written words than it would be if you could have somebody sitting beside you though.
Don't the libraries have some introductory lessons or 'buddy' systems?
Hearing you don't use copy\paste feels like hearing that you get your water from a well in the garden and your light from an oil lamp because nobody has shown you which way to twist that pair of shiny things in the kitchen or press a switch!!(plastic thing near the door at about shoulder height) ;)
Get a buddy - one of your nieces??