Sounds like it's time for you to check out, my good man. Nothing shameful or cowardly about it, you're actually doing the right thing. Let us know if you need help getting the dark deed done.
also depression meds. assuming you're actually trying to move past being sad and attempting to help yourself, depression meds can really, really help once you get on the right ones.
Unironically though, the conviction that things will get better eventually is pretty much the only thing that has kept me alive. By that token: yes, things will get better. Eventually.
Distraction helps, but when you're in the low point of depression it feels like nothing interests you and/or you just have no motivation to do anything. I mean if you enjoy playing computer games, drawing, listening to or playing music, reading or writing, exercising or anything really it can help temporarily, but the problem may still be lurking in the background. So I guess my answer is distract yourself sometimes and other times try to work towards some kind of goal, get some therapy, take some meds. Too much free time to ruminate about these things can be incredibly detrimental, so try to get some kind of structured routine on the go.
I'll go on a limb and treat this as a serious question.
You need to know what's making you sad, objectively. You may think you are sad because you don't have a big house, is it because you really want that big house or because you have self esteem issues and want a big house to impress the joneses? Neither's a wrong reason it's just figure if you are putting what really bothers you into a projection on something/someone else.
I find sitting thinking what REALLY is making me upset helps me. Exercise is awesome. Keeping busy helps a ton too, you'd be amazed how much the most minor shit like mopping the floor can break a funk.
If you can't find a basis of the sadness, that's probably depression and you should look into some help.
It's important to remember that no state of mind is permanent no matter how long it lasts. Talk to a professional. It's not just about meds, a trained specialist can also be skilled at leading a patient to the root of their problem or at least rationalizing it, and the simple act of talking about it to anyone who's sympathetic can help on its own.