Well for what it's worth, the result of this trade does not define you as a trader. I've seen you trade and sometimes it puzzles me how precise your entries and exits are, obviously you have a lot of experience.
Put it this way, say you average 10 trades per day.. thats 50 trades per week, 2500 trades per year, and 75,000 trades over 30 yrs. In the grand scheme of things, this trade is just a spec of dust.