How long time can one live life without happiness and with depression?

[young]

and if all the doors are closed and had no reason to live.. how long can one survive!

[Rupinder]

It all depends on your attitude. I think you may have gone under bad circumstances but let me tell you that thinking this type of things will just waste your time. Change your attitude. Only your attitude will decide how much you want to be in that condition.
Yeah sometimes it's seems that everything is over but this is what life is. Life always watch you how you behave in different circumstances. Those who loss hope, they loss everything and those who bounce back with the greater energy and positive attitude, they survive and live the life happily.

[Neeraj]

"Happiness and depression" of Person doesn't depend on the circumstances , it depends on his own internal satisfaction,his views towards society and situation.

Your problem can take you in hell & you may say it "the worst day of life", or it can also give you opportunity to think about your weakness and rebuilt yourself with new views for society and yourself. Only thing which governs is How much are you active.

In your case it seems that you are very frustrated from life and from that problem.
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Follow following points to reach your answer.

1)Relax
First Give some time to yourself before thinking about your problem.Take 1 week holiday from all of your work and every thing, free yourself from that environment.May be same things are rotating in your mind that's why you are under stress. fresh your mind,

2)Identify
You should understand what you really wants. May be Problem is not your problem, May be you don't want to think about it or you hate sudden load and want some time to think & to make yourself comfortable or you are bored and wants some thing new or need some space

3)Divert yourself
Divert yourself towards other things like "become active in social media - like facebook, Answer Yahoo questions/ Watch Comedy shows / Go to some new restaurant and order something new/ Leave your current city and go to some new place for some days etc. and after some days come back to your problem.

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There is no life, there is no happiness or depression any where, only thing is; "What do you think about yourself? and answer of this question is your Life + happiness + depression
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Dilon mein tum apni betabiyan leke chal rahe ho.
Toh zinda ho tum!
Nazar mein khwaabon ki bijliyan leke chal rahe ho
Toh zinda ho tum!

Hawa ke jhonkon ke jaise aazad rehna seekho
Tum ek dariya ke jaise, leharon mein behna seekho
Har ek lamhe se tum milo khole apni baahein
Har ek pal ek naya samaa dekhe ye nigaahe

Jo apni aankhon mein hairaniyan leke chal rahe ho
Toh zinda ho tum!
Dilon mein tum apni betabiyan leke chal rahe ho
Toh zinda ho tum!