To try means that you expected failure all along. You need to keep doing the Feeling Exercise. It needs to become habit if you want to feel higher and lighter. All the time? You are the captain of your emotions it does require you make the choice whether you allow something to take you down or not. That's where the feeling exercise helps.
Paraliminals without intent take longer to produce results. Being on cloud nine is rather abstract. Focus on things you can do not things outside of you.
You've spent a lifetime learning to experience life as you experience it, to suddenly have perfect bliss after one week of effort to change how you see your experiences is not something you are ready for otherwise you would have it. Joy and bliss is how you look at your life.
It takes 21 to 30-days to build a new habit. So keep doing the Feeling Exercise up to 30 times a day if necessary.
Alex