Never test the depth of water with both feet
—Warren Buffett—
He meant about risk, whenever you take attempt to invest don’t invest everything in one place.
Anything can happen, anytime and nothing is for guarantee therefore do take risk but smartly.
When you deal with emotions also be careful as all time result won’t be same according to your expectation.
Emotions also changes therefore you won’t get the same caring as you expected, it might varies according to your expectation.
RE: Nobody cares how much you know, until they know how much you care.