Too Long; Didn't Read
A year after diving full-time into quant trading, I have learned some of the most important things I've learned. I wish I had known these points beforehand, which might have saved me countless hours. Trading US stocks, forex, and bonds probably is a bad idea, due to too much competition with the biggest players. Find your liquidity sweet spot by taking a look at markets that would support your liquidity needs. Play and win in niche markets by learning their rules, rather than trading where big players trade and where the game is hard.