Does anybody else still feel like a kid even as an adult?

I (27M) still feel like I’m 16 and life is moving WAY too fast. When I was in my early 20’s I couldn’t wait for the wisdom I’d gain at 30 but now that I’m nearing 30 I can’t even comprehend that. I know that sounds cliche but I really mean I CANT COMPREHEND it..

I think I’m nostalgic for my teens because everything felt so permanent but nothing was. I know that now and wish I could tell my younger self. Because now, as an adult, I have actual responsibilities and obligations that I’m constantly avoiding and ignoring all due to me feeling like I’m still a teen. Yes I do have bi-polar disorder and adhd. I’m medicated. I haven’t mentioned this to my doctor and perhaps I should. Does anyone else feel the same?

Please tell me I’m not alone 😳😳