I was never good at day trading, going to scalping was/is even more concentration required-first seven years was difficult but it is amazing what the brain gets use to doing and doing 90-300 trades a day, you just get use to everything, nothing goes by where you don't have the answer of what to do. And I always wished I had that experience in other parts of my life, but I did notice my patience level in life in general was getting low and decision level increased, so scalping did have an affect on many parts of life in general. LOL on few times of "fat finger" I would actually laugh almost insanely as even then I didn't think-just did like before thinking, all the systems I built back then were scalping, but 2010 changed what I had to do to keep living and knew I had to go to automation. Not until last year, after 39 years of trading I built a day trading system I can live and trades 23 hours a day and any market, but scalping has reduced greatly in length cause of lack of volume from all day to the best of first hour in Indexes, but when some systems in a hole, they allowed to continue till they try to get to even on the day. Although, if I had to do it again, lost a great deal of quality of life, should have stayed with long term stocks and commodities, but can't undo the past.