I don't know how to be unhappy.
Hang on. Let me explain that.
My life is hard - honestly, it's very possibly harder than yours. I'm legally blind, even with correction. With glasses, my vision is 20/200. And yet, I'm also a photographer (not professionally). In fact, I named my photography website 20/200, though I never explained the reason for the name anywhere on the site since I don't want my photos judged as a blind guy with a camera. And as a P.S. to that thought: before you ask how somebody with such shitty vision does that... I shoot with cameras that have an electronic viewfinder. It wasn't designed to be a giant magnifying glass, but that's kind of sort of how I use it.
...anyway, getting back on track...
Things about my life are hard. Even basic things, like reading the names of products at the store. Imagine trying to find something specific at the grocery store. For me, it's hell. I often accidentally buy the wrong thing because I couldn't read the label.
But but but but but...
...but I only have two options. I can live a life of woe is me doesn't this suck, or I can choose to find happiness.
...and you only have those two options too.
Happiness Is A Choice.
No, I don't mean you choose to be happy. That's bullshit. I mean, you decide that you want to be happy and then you choose to do things that lead to being happy.
For example: I can't drive. Living in sprawl cities was making me miserable. So, I had to choose to find a walkable city and start over there. I took a step down in my career in order to move to Portland OR. I didn't just move to Portland. I moved downtown. I have the city at my feet, the streetcar stops a block from my apartment, MAX light rail is a few blocks away. Busses are everywhere. I live a few blocks from a grocery store.
What's making you unhappy?
What steps can you take to change that?
As I said... I don't know how to be unhappy, because I figure out what's making me unhappy and I take steps to change it. I also make an effort to enjoy what I have. And whenever I have the chance, I share. One thing that brings me great happiness is going on a date and bringing her back to my place. I love sharing a bottle of wine on a comfy couch. I love sharing stories. I love sharing my time.
So, to answer your original question. What's it like to wake up every day and enjoy life? It's nice! It's not perfect, but then again, nothing is. And so what? Not being perfect doesn't mean it isn't nice.