Because I'm the author of my screenplays I know what I'm looking for. It's true that I can be stubborn in demanding that I get what I want but it's also a question of working with patience and love.
There's always a miasma of misinformation emerging from the higher education sector as to which are the 'best' courses to take. My advice would always be to ignore the perceived wisdom and look for the most reliable evidence on the ground.