The 12th is your parents’ faces when you tell them:

The 2nd gif in your folder is your reaction to platform 9 3/4: 

The 20th is your reaction to the sorting hat’s decision:

The 31st is your best friend at Hogwarts:

The 4th gif in your folder is you learning to fly:

The 8th is what you wear to the Yule Ball:

The 36th is your Boggart: 

The 23rd is you visiting Hogsmeade for the first time: 

The 30th is you returning home for Christmas: 

The 18th is your reaction to Umbridge’s appointment as Hogwarts High

Inquisitor:

The 13th in your folder is your reaction to Dumbledore’s death:

The 22nd is you finding out you failed one of your N.E.W.T.s:

The last gif in your folder is your reaction to defeating Lord Voldemort: