Special case (Freelancer, commission, share market)

Hi, I have lot of questions, and income sources. Please help me. I am freelancer, working from home and cyber cafe. Living with my parents in their home. I am not married. :) I had earned Rs 2.2 lakh in 2011-12 financial year from freelancing 70% of payments received from odesk and 30% payment from paypal. In the same financial year 2011-12 i received share brokerage commission of rs 4000 from (re-miser) sharekhan ltd business partner. But sharekhan ltd has already deducted TDS on commission. I also trade in stock market, i booked LOSS of 90,000 in F&O and 20,000 in cash market (day trading). I also participate in online surveys, income from surveys for financial year 2011-12 is Rs 5000 and received via paypal. I have 1 LIC, paid 4000 rs premium for 2011-12.

Now my question are :- 1) Which ITR form do i need to submit.

2) Do i need to pay tax or file return?

3) can i show my expenditure (internet, phone bill, electricity bill, petrol, food, medical + medicines) so my income comes down to 1.8 lakh (non taxable amount)?

4) if my income comes down to 1.8 lakh (non taxable amount), then can i carry forward stock market, F&O and cash 1.1 lakh loss?

5) can i claim tds for commission deducted by sharekhan ltd?

Note : can i claim expenditure if (internet, phone bill, electricity bill) all of them is in name of my father, i pay bill via cash.

Also car is in name of my father, can i claim petrol expense?

you are tax guru, any suggestion's for me?

Thanks much.