The answer to this is almost certainly that you will.  The grounds exams are really not that difficult, though they do involve a certain amount of application and studying.  If you really struggle with this sort of thing, you might find it better to do a structured ground school course, where you will have an instructor who can answer questions, rather than try to learn by self-study.  And you may find it quite difficult at first.  But to be honest, I have never yet met anyone who could not manage to pass the ground school subjects eventually if they applied themselves.