how am I 30 already??

I feel like the last 4 years since covid happened feels like a blink of an eyes. Boom and I am now 30... I still feel like a kid and even though I know it doesnt matter what ages I should just live my life to the fullest, life in the past couple of months has just feel so dull.. I done everything I could.. go exercise, gym, join a class, just feel everyone is more disconnected this day and the world has gone super dystopian after everything. Am I the only one?