Right. I want you to know, that this is not an attack, it is not something to be "depressed" over, nor it is something I want you to take negatively. If you end up taking this blog comment negatively, I want you to walk away, and think about it for a while. As you've picked it up completely wrongly.
First off, suicide is not something to make light of. Suicide and depression is currently at an all time high all over the world. Let me be blunt, those who suffer of depression for a long period of time usually suffer in silence as they feel that exclamation of their feelings is a plight upon those who have to listen to it. Nor do they believe that talking helps. In this case, I feel you're confusing lack of ambition, attention, drive, and motivation with mental depression. There is a difference between desiring to be happier, and depression. A lot of the time, those who introvert themselves, diagnose their own conditions, and it's so easy to link a negative mood to depression.
If you were honestly concerned with your well-being and desire to die, you wouldn't be putting your cry for help on a forum where people go to post and pass time. Chances are, you're not going to come across any revelation from a user who tells you that things are going to be okay, or that you have so much to live for. You'll find a sense of self-worth from the attention you receive, yes, and I do believe that what you're looking for with these advancements is exactly that; a pick-up. Whether you have a level of depression, or believe you do, you're directing your grievances towards a crowd of people who don't actually know you. In effect, what you're doing is going down a main street, screaming that you want to die. People will be concerned, and will tell you otherwise. However, you must ask yourself, are you always going to want to desire the re-assurance from complete strangers so that you can pick yourself up for a short period of time? Or would you rather find a more efficient way of dealing with your problems, be they serious or not?
The case may be that you need help. If that's true, then you need to go get it from professionals. If it's a case where you actually do this for re-assurance and to appease the lack of attention you seem to have on occasion, then you need to interact with other people, not react on a public forum in what is a truly negative way. If you're suicidal and/or depressed, you need professional help. If you're not so far along as that, then you need to find another way to air out your grievances rather than playing the fear factor card on thousands of people on a forum, talking about wanting to kill yourself.
If you want to take advice on how to improve your own happiness, all I can say is the following. Everyone has their story. Everyone has something locked deep down inside or not depending on how open they are with their emotions. But we've all gone through hard times or some things that have affected us in seemingly negative ways along the path of our lives. Some people choose -for lack of a better word- to wallow in what has happened and it burdens them for the rest of their days, or at least, a completely unnecessary amount of time. Some scars never heal.
Now that we've got a little bitter truth under our belts, time for the progression, the next ingredient if you will. People tend to say to me when I'm down or going through tough times, "Life is hard.", a bold but true statement to make I'll admit, now I reply "Compared to what?". It dawned on me that you can't compare life to anything because you haven't experienced anything other than life itself. So my point here is, don't. Don't look for something to compare your life to, just live it. People wish their lives away wanting to be someone or something else, before they know it, they're 6 feet under wishing that they could have that life back.
Things are hard to get over right away, I'm not saying they're going to disappear as soon as you want them to. You can't rely solely on other things to make you happy. A lot of your own happiness is made up by you, by your mentality. If you choose to be happy and you want to be happy you will be. Otherwise you can choose to be sad and you will be. If you think negatively, the others around you will fell that aura. Human emotion is very powerful. You may think I'm making it sound easy, when it isn't, but I'm speaking from experience. A year ago I was close to falling off the edge in more than one sense of the metaphor. Now, I'm one of the happiest, most cheerful people you'll meet. It takes a lot to put me down for the count or for me to dislike someone or something whereas it would have been easy a year ago.
I might sound like a total cliché, but everyone is strong enough and able enough to be happy. No matter how hard your life is, there's always a possibility for happiness if you can believe that it's there for you, if you can suck it up and reach for it, if you're willing to put yourself out there. Anything is worth being happy, because when it comes right down to it, that's what we live for. To be happy.