Hi, I was always a contemplative person, seeking for a personal relationship with God. I did not feel Judaism gave me that, even though I delved into mystical Judaism too (the Tanya, the Zohar, etc) to try to find a spiritual relationship with God within Orthodox Judaism.
As for my negative view of Judaism, I got that from Jewish religious teaching, esp. the belief that to love ones neighbor as onesself only applies to other Jews. I wanted a faith that loved and helped all people regardless of their background.
I also studied in depth the history of the development of the Tanakh, and learned that the LXX was called Divinely inspired in the Talmud when it was translated in 200 BC, yet after the Second Temple was destroyed, the Parushim (Pharisees) got together to “reinvent” Judaism so it would survive the destruction of the Second Temple (which also ended animal sacrifices to atone for sin). Part of this involved junking the LXX (Septuagint), esp. since the first Jewish Christians had used it so dramatically to win Jews to Christ because of the prophecies which sounded very much like Jesus…and in its place they put the Masoretic text, with the messianic prophecies deliberately retranslated to sound less like Jesus (ha’almah in place of parthenos in Is 7:14 and so on).
I realized that not only myself but all Jews and even all Christians were lied to for 2000 years by a rabbinic Judaism that has only truly existed since the destruction of the Second Temple, and which was established basically on a rejection of Christ. The rabbis even decided to teach that animal sacrifices (blood) no longer atoned for sin, but tefilla (prayer) and mitzvot (good deeds) now did.
Its a very long story, and trust me when I say I studied this in great depth, having the advantage of knowing Hebrew and some Aramaic which helped.
As for reform and conservative, etc: they generally don’t believe in God and see being Jewish as more of a social club. I had friends who were raised reform and conservative…those forms are basically to Judaism (Orthodox Judaism) what protestantism is to the Catholic Faith. They are also very liberal theologically and politically, so they were not even a consideration.