7. Not Being Able To Afford Vital Things You Need For Your Film
"What do you want for your birthday?" Money. "What do you want for Christmas?" Money. "Do you want me to get you something from the shops?" Yes... money.
6. Playing Back A Scene And Noticing Continuity Errors
Get really mad and break stuff... or just change your script so your protagonist has random reality-altering powers that only subtly affect the world around them. Job done.
5. Editing Through The Night Until Your Eyes Melt
Let's face it. Both sleep and eyeballs are way overrated. Just power on through until daybreak and emerge from the darkness of your room barely human, but one step closer to becoming a professional film maker, so you know... You can actually get paid for this stuff.
4. Using Creative Commons Music That Doesn't Fit The Mood Of The Scene Because Copyright's A Bitch
Nothing screams professional like the kind of generic royalty free music that usually comes prepackaged on a keyboard.