Hit the groundschool hard.
Before you even start flying, start reading the books.
They have now changed the rules on taking the exams, so you have a limited number of sittings. People generally used to study the exams one at a time, and then take them when they were ready, so there would often be a month or more between exams. This will no longer be possible.
It's very easy to go along and do the fun bit of taking the flight, but you really need to work hard to get the exams out of the way, or it will limit you as your flying progresses.