Hell, is it possible?

I am a Roman Catholic, but haven't really been in touch with God, or my faith in quite some time. I was sat at work yesterday, and for some reason I googled the word Hell out of boredom, and even though I remember Hell being drilled into me all my life, I never really gave a damn, but something inside me happened when I read some of the websites. I began to actually imagine ( or realise ) that I could be in much more danger than I ever realised. I have been in turmoil and distress since reading this, and to be honest I'm beginning to think that no life after death would be better than a very good chance of going to hell. It is not so easy to convince myself that I am safe, even if I do believe in Jesus, and repent. To be punished in agony forever is driving me to the brink of insanity.