Find a Theta Healer or take a Theta Healing class. What I love about Theta is the belief work. After old thought patterns and beliefs are 'pulled,' you must have new beliefs to replace them. Otherwise, you can feel disconnected and lost. Your identity was just pulled and you are left with Who Am I? The Theta Practitioner 'downloads' you with new ones... including what it FEELS like to be loved, trusted, respected, have abundance, and more... I felt amazing after I received my new 'downloads,' and my life seemed to take off! Vianna Stibel wrote two books on Theta Healing which include just about every negative thought pattern/belief known to mankind. She explains how these can manifest as health problems. As you flip through the pages, you can find which beliefs you want to work on. It's especially nice to see there are common beliefs among all of us, and we are not alone. I also learned that all the positive affirmations in the world can't override what is in your subconscious belief system. It helps to find a qualified Theta Healer. Hint: When you take a class (3 days) you get a ton of downloads -- a more economical way to get multiple sessions in a single weekend.
Never stop learning new things. I love my Toastmasters group where there is always something new to learn pertaining to self-confidence, communicating, and leadership. I've said it before, but every week I hear inspirational speeches which keep me motivated. Many of these speeches are about over-coming life's adversities. The evaluations are made with the sandwich method to ensure you walk away with something to grow on. Many introverts come out of their shells and begin to shine (like me).
Remember: You as a human are a work in progress. As long as you are alive, you have growth potential. Life is a journey, not a destination. I look forward to the next 30 years!