I personally would start with an ordinary basic programming tutorial (you can find plenty of them on youtube -> e.g thenewboston has some very good ones).
Then watch the video tutorials so that you know the basics: https://www.youtube/user/UnrealDevelopmentKit/playlists
After that directly start with a small project. During the development process you will have questions -> post them into the forum/answerhub, because we are always here to help 
Good places to learn such stuff:
https://docs.unrealengine/latest/INT/
https://wiki.unrealengine/Main_Page
https://wiki.unrealengine/Videos