Not sure if this is the right place, but I’m after a mentor for ue4 and in particular blue prints as that’s what I’ve struggled with.
Your best mentor is doing it. Start watching tutorials, get an idea and try to make it. Start small. Use bits from some tutorials and others to get the result you want. That’s the best suggestion I can give you.
If your looking for constant support you can join the Unofficial Slack group for UE4.
Unreal Slackers is full of like minded people who live and breath Unreal Engine 4 and there is always someone around to lend their support or guidance.
Another option would be to post your questions here directly on the forums or as @UpARiver suggested, dive straight into video tutorials yourself, there are plenty out there!