im 35. used to b stockbroker. have dversified portfolio, of all timeframes, disciplines, sectors & markets. intra-day, i play textbook & higest-quality technical & fundamental set-ups. i look for 3:1 Risk/Reward. stocks $10+, 500k+ daily volume.
I use tight stops, which I adjust daily. I let winners run, but take half off when my goals hit. I only trade from my watch list and if technicals are right. I try to avoid buying when overbought or outside channel.
I've learned the hard way...