Nobody else in my family hunts turkeys, so I started by reading everything I could get my hands on (before the days of video tapes & DVDs) to get a greater understanding of the species and as many opinions as possible about Turkey hunting. While that helped to a degree, spending time in the woods around Turkeys will teach you extremely valuable lessons, if you pay attention & are patient.
I have been fortunate to hunt a piece of land that has a high turkey density with minimal hunting pressure around it. It also doesn't hurt that my best hunting buddy (who has a World Slam & hunts 5 States a year) has been willing to share his turkey hunting observations. The two of us team up (after we have each harvested one bird individually) to feed off each other's strengths in Turkey hunting (I'm a better caller & he has more experience).
I'd say, read, find a mentor/ buddy if you can, spend as much time around Turkeys as possible, and be patient. That was the path for me and it continues to pay off.
Luck Counts, good or bad