I read this somewhere years ago, and it has stayed with me;
"Opportunity merely knocks, temptation kicks the door in."
If this is the case, no wonder so many people regret missed opportunities.
Keep your ears, eyes, heart and mind open. Go against logic sometimes, your heart can lead you to some wonderful places.
Bad experiences happen to good people, and good ones to bad people. What you make of each experience in your life is up to you. Take something good from the bad, and cherish the good things. Hold the happy experiences close, but don't ignore the bad ones. Everything that happens, makes us who we are.