But always trading in small caps or putting large amount of money behind blue chips is. CFD's/margin lending are just for kicking yourself in the nether regions before you start putting your income directly in.
Eventually you will be "bankrupt", just a matter of time. I'm young stupid and cashed up though so I don't mind gambling professionally.
x(1.1*0.9)^t = 0 - Brokerage
If you're not having fun doing it then you are wasting your money because we all know we're not stopping when we're up :D.