Mentor Needed - Prefab Model Importing

Hi Guys,

I think I could really use a mentor. I am very much a beginner at Blender, 3D Modeling, Textures, Materials, etc and I feel like many of the tutorials or workshops I have looked at make some assumptions that I know what I am doing. 

I do NOT... LoL!

Obviously I am learning, but I keep hitting the same roadblocks. 

Admittedly, I am attempting to get started using prefabricated assets, Stuff from Sketchy, Sketchfab, Unity Store, BlenderKit, etc. because I just dont know how to model, apply textures, bake, any of that... 

I've been able to import some things that were relatively straightforward, but I am using tools to help (Like SimpleBake for example) but the UV maps are terrible and the textures are so poor once brought into horizon worlds... It's very frustrating

And then theres the issue of oh hey yay I have a texture map for Base Color, Roughness, Metallic, Normals, Emissions, Ambient Occlusion, yada yada yada, but somehow I am supposed to combine all those into a BR, MEO, MESA... How do you do this? Is everything in the Custom Model Import universe supposed to be ridiculously difficult to learn, or require apps that cost $50 a month?  

If there is anyone out there who would be willing to have a few one on one sessions and can show me how to do this stuff in an easy to understand way, I would really appreciate it. I am just not having fun right now, and I know I must be doing something wrong...