How to go long with leverage?

i lost about 30 lacs thro’ futures trading and it took me over 2 – 3 years to break even and recover from that loss – I used to think that had i not known and not started futures trading ( like i started smoking from my college days ) I would have been a better man ! We have so many things working against us in futures trading – about 1% extra every month if you are carrying over a long position , opportunity lost on margin to be maintained,enormous ENORMOUS stress which used to impact my sleep and my health – and finally what ? nothing much . It was a stroke of luck which helped me finally make profits on my futures position and get out . Never again will i want to trade in futures.Lesson learnt.