#1
im having a hard time strumming up. i can do down strumming okay but when i try up strumming it sounds wierd. any tips to get better at up strumming?

also can you tell me the strumming pattern for Howie day-collide?
#3
Get a thinner pick. I had troubles to start with but when I tried a thinner pick (about 0.7mm), it was much easier.