I did a lot of work on myself mainly in my late 20's through my mid 30's but then again a few times after that. My work started when I had a wife, a son, a dog, a house and a good job but I realized I wasn't happy. I had been laboring under the misunderstanding that achieving all of those goals would lead me to be happy. I went to a counselor to talk about being unhappy and she strangely asked me to come back with my then wife for the next session. We went through the remaining five sessions that came with my health care from the company I worked for at the time. At the end the counselor suggested I start to attend some meetings and also suggested my wife attend a different set of meetings. I did, she didn't, I started changing, she remained the same and eventually we split up.
The meetings I went to opened me up to an entirely new way of life and lead me to be prepared for better and better relationships. I had the best relationship I've ever had, but we were in two different phases of life and she needed to be on a different path. I eventually met my now wife and have had an amazing life with her that I could never had imagined. She keeps me honest and lets me know when I should look within myself when I'm getting away from what I've learned.
So I still look inwards, but it isn't quite as time consuming or deep as it was in the past. But I too see myself as a work in progress and I still hope to continue to improve.