Even I feel I don’t have enthusiasm about my faith sometimes! And I wish I was a cradle catholic who had the Sacraments my whole life!
Just keep praying! The path you have is unique and God is going to use you! Fall madly in love with Him and you’ll find that enthusiasm and passion. Live your life like it is dramatically different than things of this world, because it is!
I’ll pray for you! And I love you!