Like most of the other guys have said here, it really depends on you.
The groundschool is a pain, hard work but some people really enjoy the technical side of things, although I think they are in the minority.
You shouldn't have too much problem with the sim, she is a pussy cat single engine and especially the NG, has so moany things there to make your life easier. I cant redcommend using the Flight Path Vector enough, especially single engine!
Sim is structured, and you will do your LST feeling like you havent learnt enough to fly the thing. Then the big test and probably the most nervous and excited you will ever be, base training.
You really learn things on Line Training, where so long as it is structured and supportive you will be fine.
Have fun and best of luck!
TRon