How to live life to the fullest

Any tips to make time go slower? It feels like every year is going 90mph. And it’s killing me. I feel like a major reason for this is depression on my part, and just not feeling like making the most of everything. Anyway yeah, I’d like to make the most of life now before it’s too late. And just to address the elephant in the room, I know I’ve been gone a long time! Sorry!