i've had a bad 2 months of trading and recently moved from es to spy options and es options,there are 2 differences. One is speed ,becauses the options have a delta,i.e.an option with a .50 delta will move half a point for every 1 point move in the underlying security it is traded in,they move slower. That is the equivalent of parking your car and switching over to a bicycle. In doing that your profits and losses are smaller,and your p/l moves up and down at a slower rate. Now if you are used to the action this adjustment to a slower speed is very difficult. Conversely,if you are trading spy's and you move to es you will have to make that adjustment to your psyche and it will affect your trading while you are going thru that learning curve. Be prepared to trade small and protect your acct while your mentality adjusts to this change in trading styles,it's not automatic. A bad entry can go $250 with or against you on a 1 lot in a matter of minutes,so u must be very adept at excepting and taking losses and profits quickly,and astute at picking entry points,work on those 2 things before u move over and become good at it, and u will be fine.