"You don't get better doing things wrong."
When i started playing online anytime I got 3 bet by a full stack i called with any pp to set mine. Sometimes i hit sets and thought about how clever i was, some times i missed. Then one day some guys at ftr told me to look over my HH and do some math and i started laughing.
Then again i think i really learned the importance of proper note taking from writing stuff down then later looking back at it and thinking, "how would this ever help me?"