Jew or gentile?
If you are a gentile, you don't have to indulge in any of the Jewish festivities, it doesn't suddenly make you Jewish, it doesn't make you any holier, it doesn't get you any closer to God than Him being in you, and it certainly doesn't make you any more appealing to God than you already are.
Just be yourself, God knew you would be a gentile before you were born, and He loved you before you were born. Stop trying to be someone else, just be yourself. You are worthy, at least God thought you definitely were when His son died for you, maybe you should start believing that.
You do know they are still waiting for their Messiah, you already know Him, why regress in your relationship with Jesus?