It's much easier to eat shitty, drink and party, than being on a strict diet and going to sleep early.
But all those are temporary pleasures.
You can have fun eating crap and drinking alcohol, but for the time you aren't eating and drinking, you'll feel like crap.
But, if you look like a god, you'll feel like a god for 24 hours every day, and that's more satisfying than anything else.