workinonit, from your post, I am guessing a cause of your happiness problem is due to things in your life that are troubling you, and it is difficult to let go of them. And of course, that is understandable. And many times, things we deal with have a bad habit of staying with us for a long time, and we just can’t shake them. So instead, it may be better for us to develop a new way of looking at these issues that can result in seeing them in a positive light. I am going to copy something I wrote in a another thread here, and hopefully it’ll help a little for you:
Many times, things look bad to us, we think there’s no end to our suffering, and we wonder “why me?”. But the truth is, we never know the full picture. Only G-d does. So we may be stuck on a few sharp puzzle pieces at the moment, but after a while, we see how the pieces fit together to create a beautiful scenic view. G-d gives us these challenges because He knows we, and not others, can deal with them, rise above them, and even become great because of them. We should consider ourselves lucky that G-d is giving us the opportunity early in our lives to show our loyalty to Him, to overcome obstacles, adversity, and evil. It is a path straight to G-d’s throne. Not everyone has that opportunity. Not everyone is given the chance to show loyalty to G-d so openly, so early in their lives, and so often. If we realize all this, then we can not only make it through the challenges we face, but even thrive on them. Be glad that we have such an amazing opportunity in our hands. That we are the lucky few that G-d chose to demonstrate to the Jewish nation, and to the world, how to live by, accept, and thrive on, G-d’s command. That we were chosen because we have something special in us, and G-d knows this, and He is giving us a way of using that special power so openly, it is almost as if He is talking to us, saying “Look at your potential! Here, I will now give an opportunity to reach that potential, to show others how to live!”
Hopefully, this will give you a new insight to dealing with things that are troubling you, and help you let go of them and enjoy life more fully.