Try to say bubbles in the angriest voice you can

Order a pizza

im in school. pizza is not an option

Hold your nose and say sneep snoop

you can also say sklurgle

Seriously though, really the only person that can make you happy is you. Try song something to help someone, not necessarily someone who wants it, but someone who needs it. Like volunteering at a soup kitchen. I find that helping someone else feel happy makes me happy.

How to be happy , in simple steps.
Step 1: Say "beep" under your breath
Step 2: Say "Boop" under your breath
Step 3: Repeat Steps 1 & 2