There are a lot of ways to clear this level.
One suggestion: clear all the teleports first. So this means going 1 -> 2 right away.
Then go back and forth in the top right, and then all the way down to 4:
Next, directly to 3:
Loop around a little bit, then go up, to get to the below:
Recognize where the end is and this shouldn’t be too hard.
(Answer: the protruding red tile at the bottom)