I need some direction with terrain (tutorials)

Hi, brand new to unreal and have been trying to piece together information over 20 different forum posts which is leading me in circles and making me want to rip my hair out :). I just came here from unity and I have created the map below with combined height maps. I have made it this far on my own, now I am trying to figure out how to create macro textures. I read the documentation but is there not a detailed tutorial on how to do this? I type it into my browser and its just leading me back to the same forums where they dont go into much detail on how to do it and what each part is actually doing in the material editor. My landscape is pretty large as you can see so macro textures is a must. If someone can please provide a detailed tutorial on this I would greatly appreciate it.

Thank you!

If anyone else is struggling to get started with terrain I found this

Getting Started with Landscapes | Live Training | Unreal Engine - YouTube - looks like there is a lot of helpful information there

and this documentation on texturing

https://docs.unrealengine.com/udk/Three/TerrainAdvancedTextures.html#Macro

Hopefully watching the video and looking at the documentation will provide some insight on how this works.

for beginners with standard materials [TUTORIAL] Basic Material Creation in Unreal Engine 4 - Part 1 - YouTube

For landscape materials UE4 Landscape Material Tutorial Pt1 - YouTube