Regarding the frame material . . . well if misused, all frames will break. Titanium will take the most abuse before breaking, carbon the least. If you're going to be nervous riding carbon, then just get a metal bike and ride with peace of mind.
Just my opinions, pal. Enjoy the journey.
__________________
See, this is why we can't have nice things. - - smarkinson
Where else but the internet can a bunch of cyclists go and be the tough guy? - - jdon