I once read in a book on trading that if you buy a support and you are stopped out you should not be disappointed. You were not right on this occasion but you must be disciplined to try again. I find that sometimes this leads to buying the the market at the same price a few times and getting stopped out repeatedly. Other times the first attempt may fail but the second time may is successful. The question I have is this: when do you regard a support (or resistance if you are looking to go short) is broken and give up on it and look for another opportunity away from the immediate market conditions.