Saw a video few years ago, where clay went short on some penny stock ;
price rose up till he was down $4 000 in 10 mins or so, then went back and he made $1 000.
That was the first and the last time of me watching any of his videos, since, obviously, he haven't seen that video with young Tudor, where he says :
,,Im risking 8 cents to make $8.
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Your best teacher will be your own data, - your own mistakes.
You can collect that with demos/sims.