You are not a "boomer" if you aren't in your twenties. You are not irrelevant if you aren't in your twenties. You don't go straight from being a kid to being "old". Stages of life are fluid and vary for each person, and should be savored to the fullest of your means to do so.
Stop letting internet memes about age, height, and general state of being have an actual impact on your mental health. They mean nothing, and don't benefit you in any material way.
edit 1 part 1: this is the worst comment section I've even seen in any Hexbear thread in all my years, except for @Dirt_Owl@hexbear.net who is as always the best of us
edit 1 part 2: generationalism is also made up, don't let people put you into boxes and further don't put yourself into a box that someone else made up for you
Fun story. I was working at a fiberglass boat factory at 18. The day of my 19th birthday I was leaned over a pan mold (think the floor of the inside of the boat kinda) and stood up to stretch my back because it was killing me. My supervisor joked that you don't get a spine til you're at least 19.
Funny enough he didn't know it was my birthday, just that I was a baby.
Now I'm 32 with a bad knee I feel old every goddamn day.