Laughing at yourself is easy. Self deprecation is hilarious. To others, anyway. And to you, to an extent.
It's good to laugh at yourself, but you've become a joke, a punchline, a caricature of who you wish you were.
You're a fun house version of yourself, disproportionate, and ugly. In your head you're a smart, savvy person with a great body. In real life, you're dumpy, and messy.
You feel out of control, your thoughts are lapping you. You're still at the starting line. You'll never win this race. Accept your participation trophy and move on.
You're the only person who knows what you're feeling. And guess what? You have no idea how to express it.