Why am I always surprised at how good I used to look

Whenever I see an older photo or video of my self whether it was recent within the past year where I look very similar to now or years ago when I was younger and where I look really different, I am always surprised at how I actually look pretty good and I think to myself why was I unhappy about my appearance, why was I shy etc.

And I still am unhappy with my appearance right now and still am shy and in the future I will probably look back and think the exact same thing.

Has anyone else experienced this?