oh and I've been trading live for almost 3 years.. I'm a computer scientist turned career trader.. Wiped out plenty of accounts, only trade Forex.. I use 6 accounts with $10,000 in each across 3 brokers in order to execute extremely high-value, unlikely to execute trade scenarios.. USD/JPY 83 long/ 73 s/l 130 t/p for example.. This is my bread and butter.. ultimately, you treat one account as one trade.. put 30% of the account going in the direction you think the price will go (slowly escalated) .. never take a stop loss but use 60% of the account to hedge in the opposite direction in case of catastrophic movement against you.. Do not bank the loss when you breakeven.. always hold on to the trade.. Investments can be 30 seconds or 9 months.. You own the investment of X dollars, euros, francs etc.. never, bank a loss.. When you reserve 70% of your capital your options are nearly endless.. There is no point where you should freak out worrying about catastrophic loss because you should never, ever use more than 30% on an idea or philosophy .. Use your capital wisely to bail you out of any situation..
e.g. if you're short, go long with twice the amount of lots going short.. use your capital wisely and in a meaningful way.. Your capital is your capital and you should never bank a large loss.. You should always keep your positions small and use your reserve capital to bail you out of any potential situation..
My 7th account is an everyday account to jump on trades like this EUR/USD short and play around with trades for spending money ..