There are only two ways to really know. The hard way is to get a margin call. The easy way is to keep an accurate record of every trade and study those records. You can do it manually or you can do it efficiently, easily and quickly with YourTradingJournal. The journal costs less than $2.00 a week. For that it acts as your personal assistant, technician, analyst, back-tester and best friend. Can you afford not to have it?