I know I just posted but I saw this and really wanted to answer ;;
Huge disagree! Even just wearing clothes in a different style or colour can make me feel completely different, and I love the way people are able to express themselves not just by what clothing they like to wear, but just whatever clothing they like in general even if it's not something they'd feel comfortable wearing. There are different outfits for different people, different moods, different social events, different cultures, it's a fantastic way to be able to express yourself. Fashion is fantastic and I'd never call it a waste. I do think clothing can be unfairly priced somewhat often though.
Things like New Years Resolutions are things people should set for themselves even if they're never going to actually commit to them.