What should I do to come out of this situation?

I was born in 1986 and my father expired in 1993 due to heartattack.Society says he use to drink too much.Since then my mom is holding the expenses of our family of grandparents and us 2 brothers,me being elder.We also had and uncle but he was always looking on grabbing the house(the only property with us).
I always saw mom running over crises and pressure of society,to divide the house with our uncles.I tried to help her since that time and she always scold me away.
I felt myself as burden since then remain quite.Mom use to scold and beat us in her tension,understanding every thing I always took protection of my brother.
At 1998 we re-constructed our house and it clicked to me "If we are not having money how can we reconstruct it?" So I asked mom about this and she denied to tell. I first time spoke to my uncle since dad`s death and asked his side of view. He said “like u r elder, ur dad was elder too! ; He made mistake marring this woman and now we all can just face it.Try keeping an smile on ur face before its too late!”
In year 2000, A dirty neighbor girl came way too close to me. She gave me nice hand blow job and few months after that she left town. Since then, thanks to her, I use masturbation as joy!
In 2002 I tried to propose a girl and she called at home on my birthday to accept my proposal, mom interfered and scolded her.Scared of this she told her parents,their parents called the principal,principal called mom and me; (every one being orthodox) found me guilty and I was told to be aways from girls or else fired.Mom was pretty upset and she warned me "no girl`s name should come with your name".
The girl tried to contact me several times but I never was able to gather the required strength to even look.
In 2005,I joined engineering college, and was having some time away from mom.I was interested in Internet and computer. It helped me to learn about how to use websites etc. I saw that my mom was a government teacher and principal since 1984.All her problems of finance was a fake 1 and in-fact she was a "greedy *****".I printed a 60 page document and stood before mom explaining her that she lied to me about crises all lifelong. She and my younger brother stood together and act like we never said so!!
I still dint know how much money my mom has,neither I wanna know.
I started website development and drew a good amount of money.
1 day I came to know that mom`s paychecks stopped coming. So I send my savings to her.It was really a needed time.
She never said "Thanks" instead she said " we could have done it without you also It was you who was pushy".
I then went to house in months and in college I started smoking and drinking. I tried to act like others but I think it didn't worked.
I am a mechanical engineer so there was no girl in our class so I was not having girlfriend but my friends were having but I had never talked to any girl.
In 2007 we all went to attend a family wedding in Delhi. There I met a distant relative`s daughter and I liked her, but as usual didn’t tried anything cze of 1% probability was there that “this could creat a scene.”. . . Later that girl told her whole family that she likes me in-front of me. Her mom told my mom and my mom, as addicted, took this in wrong direction and blew it.
In 2009 January, When I came in final semester my grandfather expired due to heart-attack and I was busy in his pyre services. My brother was also in another engineering college and was 1 of the bright student of Civil by the time. I couldn't appear in my final semester exams and I got a whole backlog, which is a pretty big deal in India.
By the time I could clear 1 extra semester, all my friends were placed in IT Company and recession was at full swing. I was a huge IT buff and whole city knows me.( I took out university server and posted my website instead of their`s. In against, I was placed as criminal instead of talented.) Mechanical engineers were not allowed to be in IT,CS fields due to recession. Still I knocked a 1000 doors of companies. Mailed them resume etc. . . but nothing worked.
All outsourcing projects were curbed and I came to a verge of bank-corrupt and forcefully joined a mechanical company. I move into house with mom so as to reduce expenses. All smoke and drink habits came in limits because of no money and being at home.
The girl I like in school is happily married with some 1 else.
The girl we met at wedding is doing her job and earning 5 times then me. She has a boyfriend from her college working in same company. Her parents have asked for my horoscope, not knowing that her daughter has at-least 1 Boyfriend. I don’t wanna go in any triangle knowing that there is a triangle and I can be stuck in it.
I still can do outsourcing but I don’t have will/interest to do it. I am stuck at job of mechanical which I neither hate nor like but my boss is sufficiently satisfied and blames me of “living a depressed life”. He pays me consents and I use them for donation to poors. I often talk to beggars and blinds and lower part of society so that I can thank God for something.
Currently, My mom is suffering from High Blood pressure and is taking homeopathic treatment.
I help her but inside I don’t wanna help her I want to kill her but, again, if I kill her, there wont be much difference between her and me.
I do accept that I dont have a will,enthusiasm etc of any kind.
I do have a small interest in politics but in India that doesn't count.
What should I do to come out of this situation?

I gave following tests
Sanity score 120
OCD Quiz 23 (OCD is likely/High risk (8 jan 2011)
Do I need therapy? 33
Anxiety screen 6 (mild)
Depression 58 (severe)
Eating Attitudes 5 Dieting subscale:3;Food pre-occupation subscale:2; BMI: 32.1