Hi there, welcome to the forums!
Here’s a list of some good resources:
The forum here has a ton of tutorials, most are located in the Community Content, Tools, and Tutorials section, but they can be difficult to find if you don’t know what you are looking for. I would recommend using the above resources first, then when you have specific things you need to learn, come back here and search for it.
To discuss UE4, there is an Unreal Slackers Discord server with thousands of users, and almost always there will be either Epic staff, us moderators, or one of the many UE4 experts who can help you out. Hope to see you there! Of course you can always ask us here on the forums, but you will probably get a faster answer on Discord.
Hope that helps!