Darc,I and several others are ex hedges, ex Investment bank traders,and from my perspective the biggest difference is trading OPM and customer flow. Another factor is Institutional guys are surrounded by really bright minds...
Other than that,with zero commish,great "retail" software available,the playing field is pretty level..
I may be in the minority,but I would find a trading coach,mentor /teacher. But above all,you have to have the ability to hear,which as you can see,many ask,but few listen.
I would not quit my day job.Start with a style that doesn't require constant focus,and start with a style that fits your temperament. Start small and understand capital preservation. Make it enjoyable.
Once you find a style/methodolgy,backtest away..Portfolio 123,Orats,Quantshare/Amibroker off the top of my head..
You are already asking the right questions,but find the answers for yourself.Ive been at this for a while, and have learned from guys like Des and NewWorld.
Don't fall for the retail guy can't compete with Institutional..Utter nonsense.Buffet says it,and I could prove to you that being retail has its advantages..
Isn't Institutional investing alot different to Retail due to the size and the way they have to buy n sell in chunks etc?