Reading Latin is definitely a process. And Livy isn’t as easy as Cicero or Caesar! Perhaps this recent thread can give you a little encouragment about the time it takes to read some of the classical authors:
http://discourse.textkit.com/t/take-the-tacitus-test-or-how-i-learned-to-read-latin/11293/1
I would recommend reading some more student editions. I find them very helpful and can feel my comprehension in reading grow as I get helpful tips that I use when I read without notes. I worked through the Cicero: Legamus Transitional Reader this summer and found it helpful with syntax and grammar that I often don’t look for when I read. It is nice too because it works through the same passage twice. Once with helps and then the whole text mostly by itself.
Vale,
Gaius