People convert to Judaism for different reasons. Some people, like yourself, simply join the Jewish community through your religious practices and feel like since they have been "living as a Jew" for a long time, they don't need a formal conversion. That is very common.
Converting to Judaism is entirely your decision and we cannot advise you on what to do specifically, only to say that we are here for you when or if you need us.
If you are not 100% certain that conversion is right for you, consider trying out one of our other programs such as Comprehensive Jewish Studies.