When a trade is reverses fortune and you wonder what went wrong

Lets say you have a trade opened & its profitable. all going to plan. then you get greedy. over boastful of your legendary trading skills. you ignore the original trade plan, you devise a better plan to accumulate more profit. you dont respect your previous profit Targets, & you keep the trade running, eventually you becoming forgetful of the market nature & trading. The market turns against you & you are left wondering what went wrong. Has this type of trade ever happened to you? it happened to me