“first things first the following i still can not find thats with the following tabs:
Construction Managment
Electrical Contractor
House Renovation”

Strange, Please do following

Step 1: https://imgur.com/a/scCfZ
Step 2: https://imgur.com/a/4uGLb
Step 3: https://imgur.com/a/KP27Z

“but is it easy and confusing or even difficult to use? ”

IMO, you are new with sp page builder so it takes time to learn about using page builder first, not the template itself 🙂