Quote from Algorithm:
Currently 35 (will turn 36 this month) and never felt better. I have been investing for years (since age 19 or so) and trading/running my financial business full time the past 3.5 years.
Although daytrading is only a small portion of my time/effort and can be rewarding, you will find that as you amass wealth, being able to build larger positions and extended time frames becomes much more important. This still entails a TON OF TRADING but with a much different attitude. Think of it as graduating from smash-and-grab to jewel heisting to eventually becoming the Don (don't know why I chose crime syndicate analogy, just seemed fitting, LOL).
Simply put, I've made sure to make daytrading a very small effort and my overall business has been flourishing. I think younger traders have a small edge in daytrading and are at a GREAT DISADVANTAGE in trading longer time frames. I remember long ago that I put a person into a mega-winning trade that only took a week and a half to evolve and they punched out with less than half the profits that I did. If you're going to take the pain make sure you get most of the gain. I have found they are much more adverse to the emotional toll. Hell, some of my most emotionally tormenting trades have been my biggest/successful. I have become masochistic I suppose (reality: just really good at separating emotion from my trading).
I guess I'm fortunate in the fact that I reverse engineered my style/career. I worked the regular grind and started investing successfully at a young age. I only needed to scale down my positions and timeframes. I am used to holding for extended periods of time through adverse conditions (survived the bubble and 911, was out on substantial margin during the attack, as a matter of fact, and never even came close to a margin call, knowing how to hedge is golden).
Daytrading will take its toll and to really amass wealth you will need to do well at much higher stakes with a bit longer timeframes. Your abilities to scrutinize companies, markets, politics, tax implications, overall deals, etc.. becomes a MUCH GREATER IMPORTANCE/ADVANTAGE than precise entries and exits. These, for the most part, are put into proper perspective and the domain of the experienced/wiser mind that only survival and age can teach. Anyone that says experience isn't a factor that creates/contributes to edge is most likely young or won't be around for very long. Also, age tends to weed out those that have been luckier than good.
Just my experience since you asked. Got to know how to shift gears. The more gears, the longer the lifespan. If you survive, adapt and stick with it, your best days are yet to come.
Good Luck!
). I made a huge profit in terms of percentage --of course. This was my beginner's luck which got me zealous about the financial markets. 
