If it's that bad you're probably better of with a psychiatrist as opposed to a bunch of people on a forum.

As for the question... I get out of bed because life is beautiful, worth living. Life is about joy and happiness, and growing and evolving as a human being and as a Soul.
Doing things that make you happy and fulfil you, seeing the beauty in everything, including small things :)
Like seeing the beautiful roses in my garden even though the rest is one big mess and looking more like a jungle than the nice garden I was creating. But the roses are still gorgeous, even the one that grow on the broken rose arch that's hanging in the hedge.

The glass is half empty or it's half full, or maybe even full. It's a choice.
BTW, if you have no real reason to feel suicidal then it can be smart to have your hormones checked (blood test). Hormones do funny things with people, and they define who we are, how we feel. They basically run us.