you don't need all the masks to beat Majora, you need to trade them all to get the Fierce Deity mask. Otherwise you just fight Majora as yourself and as Jack said, it's just harder
I remember the goht kid trial when I was beating this for the first time as a child. It was so incredibly frustrating and after an hour+ I realized that holding forward while bouncing off the chests messed up my alignment. I too share your pain.
Thanks for another awesome playthrough. I've never played the series before so it's been a blast to watch for the first time. You guy's are hilarious and make my day!