Hover bike / attempt to make something

I’m trying to make a hover bike that hover and angle of the bike stays parallel to the ground. I attempted to make one and it didn’t really work / wasn’t able to climb a hill.
Here’s an example of what I want to see.

I attempted to do this thing on YouTube but it didn’t work / wasn’t fit for what I was attempting to replicate.

I modded the script it kinda works but doesn’t do what I want it to I want to script a new one from scratch. @Edd_E