i have a written rule regarding money management. i traded well yesterday. but today i took 7 trades all losses (though 3 were half-sized "foot soldier"), even though my rules are to halt trading after 3 consecutive losers ..... and switch to demo account. why can't i halt at 3 losers per plan? i do have a written plan that i looked at before each trading day. only 3 pages, not those 20 page comprehensive never-read-again plans. i took some half-sized entries, stopped, but felt i had not yet reached my daily loss limit. so i continue on. the red P&L would have alarmed me if i had took 3 full sized stopped outs. as it is, i ignored the P&L to focus on what i should do the next trade. every new trade is independent by itself. i averaged 77% winning percentage trading fulltime so i was confident my next trades would be good. i kept taking losers. by the time i finally caught myself, i had taken 7 trades all losers (3 half-sized and 4 full-sized). i surprised myself ...... how can i kept trying new entries with no concern for winning percentage. i would have stopped if i don't get 1 out of 3 or 1 out of 4 correct. but today i took 0 of 7. basically out of control. discipline lost. i am disappointed with myself as i'm not new to trading been trading since 1998 and fulltime since 2007 (and profitably paying bills). how can i suddenly lose the kind of discipline i worked so hard to develop? i kept trying next trade and next trade, making novice mistakes of getting it back. this is depressing ..... why can't i stop myself after 3 losers?