Rohit,
Obviously, your father is creating alot of problems for you and your brother. You, I believe would do very well if you were to get into therapy. From what you are describing, your depression is situational and would respond well to counseling. As far as your brother is concerned, speak to him about the possibility of doing the same. Your brother has to realize that he is a grown man, and that he has to find and live his own life, not be your father's person to control. This can be difficult in the best of situations, but, depending upon your culture (and from your name, I am thinking you are Israeli), and the individual family dynamics, it can be even harder.
Make the appointment to see the therapist as soon as possible. My sense from reading your post is that you will be very successful in therapy. In the meantime, even though it is difficult, try not to medicate with alcohol. In the long run, it can get you into more trouble than you are having now.
Perhaps, when you are feeling better, you may want to address some of the issues that come up for you in therapy with your dad. He definitely is creating alot of unhappiness for his children and not letting them mature into the individuals that they are meant to be.
I will be watching your question, should you want to talk more about your situation.
Elena
