My advise is simple. Look in the community content section here. You will find a lot of great stuff and lots of users have posted tutorials on their youtube channels so subscribe to those you find useful. Go to twitch and watch unreal development streams. Many streamers including myself are more than willing to answer any questions we can and show you examples live. Speaking of live be sure to check out the unreal live training videos they cover a ton of awesome stuff.
Aside from those options you should also be familiar with Blueprint nodes. Here: Unreal Engine Blueprint API Reference | Unreal Engine Documentation
Also community led training. Here: Community Led Training | Unreal Engine - YouTube