(Former Anglican/Evangelical here.)
It was the same for myself - Marian devotion was something which drew me, very much, to the Catholic Church.
I found that scripture supported some pre-eminence for Mary, which was completely lacking withing Anglicanism. The details didn’t particularly concern me.
This intends no lack of sympathy for the OP’s difficulties. I’m just responding as a former convert to the question.
The only Church teaching which bothered me for any extended period, during my conversion process, was The Sacrifice of the Mass. Eventually I realised that I could either accept all of Church teaching, or stay outside it - and accept the consequences of that. I chose to accept all of Church teaching. Within a very short time of being received into the Church that difficulty faded, and I’ve fully embraced The Sacrifice of the Mass within my spiritual life. Just as I’ve fully embraced all the other things which Protestants usually balk at - Purgatory, Confession, Prayers to Saints, veneration of Mary, etc… It works together as a “whole” which grows in time.
My experience has been very much that of Cardinal Newman:
Only this I know full well now, and did not know then, that the Catholic Church allows no image of any sort, material or immaterial, no dogmatic symbol, no rite, no sacrament, no Saint, not even the Blessed Virgin herself, to come between the soul and its Creator. It is face to face, “solus cum solo,” in all matters between man and his God. Cardinal Newman, Apologia Pro Vita Sua