Once you DO successfully attract what you want and change your life, stay humble. Be thankful and grateful and share your happiness with others.
Being selfish, greedy, egotistical, show off, or anything like that will hold you in a lower vibration and most likely prevent you from continuing to attract success.
Make sure that once to do succeed, continue all the positivity, visualization, focus and love that you were doing before. This will ensure a continuous flow of awesome energy through you forever.
Some people succeed and then totally change their daily habits over night because they think they are “done”. You are never done being in control of your own life so what ever habits caused you to succeed, keep going, growing and evolving.
The simples way to stay humble once you succeed is to share with others and help people do the same.
Help others also be happy.