I made some 'maps' for you here.

Very simple here. See the circle in front of the toon? There are no branches or roots there. Go right. Take left (no other choice). Go to end. Take left. Then take the right and you're done with that one.

Same as above except you see branches/roots so you reverse the directions. Left, right, other end, right, left.

As you can see with this one, you can either take the first left/right, or go into the middle then take left/right. Go into the middle and just follow the lines I drew. If you try to imagine it, it's like a misshaped number '5' with.

This one, you have no choice. It's the exact opposite of the maze just above.
When you reach the end of a maze, you will sometimes run right into another maze (back to back mazes), just follow the same maps.
Avoid back 9's though. There are more mazes that these maps can't help you on. That and you can do 2 middle 6's in about the same amount of time and get more options for it.