Hi,, new to FnO

[aam537]

hi to all ,

i trading only in stock since 1 yeas
i had loss of 75%

i like to do trade with NIFTY FUTURES

can any body give explain

1) how much to pay buy Nifty Future @ 2885
2) it is lot ; i hope it is lot of 50; then how to pay
3) how to place stop loss; until how many points to wait for exit without loss

thanks for all seniors

aam