I'm a little surprised that a contemporary Roman Catholic would have had a big emphasis on hell in their background; that's more of an evangelical Protestant emphasis. The truth is, there's not a lot about hell in Christian scripture, or in the Hebrew bible either. Most Catholic theologians have a very nuanced idea of hell or purgatory, mostly in an academic sense of needing something to "balance the moral books", to bring justice to the universe, not to scare little children.
When getting over theological toxins, it helped me a lot to realize that plenty of people from orthodox backgrounds have walked away from those ideas, and they have written some great books that will make you feel better.
Have you heard of Matthew Fox? (
http://www.matthewfox.org) He was a Catholic monk whose studies convinced him that the original emphasis of the Christian church was very different from the hell-based one that tries to scare people into faith. The church didn't like it...he's now an Episcopalian. But I recommend his book "Original Blessing" for a person in your situation. Just check it out from any library.
On the Universalist side, you're now entering into a religion with a long, extensive history of pointing out the flaws in the hell hypothesis. In post-colonial America, the Universalist preacher Hosea Ballou's small book, "A Treatise on Atonement" was one of the most popular books of its time and lays out the basic arguments pointing out the contradiction between the idea of a loving God and the idea of everlasting punishment. If you can read a book written in 18th-century English, you might find some comfort there. It's on Google books.
A more contemporary study that might be helpful to study with other UUs is a book written by Rebecca Ann Parker and Rita Brock: "Saving Paradise: How Christianity Traded Love of This World for Crucifixion and Empire". Parker is the dean of the UU seminary in California, and one of the interesting points she makes is: "It took Jesus a thousand years to die. Images of his corpse did not appear in churches until the tenth century. Why not?" Like Fox, she points out that there are historical distortions of the original Christian teachings that can be overcome.
A more fun thing I'd recommend is that you watch the comedian Julia Sweeney's show "Letting Go of God". You can find the whole thing on Netflix (and pieces of it on YouTube). She grew up Catholic, and in the process of trying to deepen her faith after her brother died, wound up leaving the church. She has the best monologue on what that struggle between your head and your heart is like, and some funny observations on what it's like to come from a Catholic family.
But, these intellectual ideas are only part of the healing process. The fears you feel will be replaced by other feelings of acceptance and love as you walk the path with others, and rise to the challenge of building your own theology.
Peace be with you!:rainbow1: