I will be like my old (young) self again. No longer will I let things annoy me. I'm realistic, so probably some things will continue to annoy me, but I will let those annoyances past. Here are some things that come to mind that have annoyed me in the past:
Android.
People justifying high prices for things.
Marketing (giving reasons for high prices for things).
Confident people with no intelligence.
Intelligent people with no confidence.
People making a big deal between a 170mm and 160mm travel suspension fork.
The overly segmented bike market (you need a commuter bike to commute, a fitness bike for fitness, etc).
I am done with you, annoyance. No longer are you a thing to me.