Get your medical & at least one trial flight before investing a lot of time and money into it. I have seen people getting to solo stage and realising that they'll never be able to fly due medical.
Don't use the simulator, you'll pickup really bad habits that your instructor will hate you for... at least until you get to instrument flying anyway!
I used the Pooleys books because they suited my style a bit better, and were easier to carry, but nothing wrong with jeppesen's series. I then practiced with an app called EASA PPL Exam which was pretty good.
I would take a trial flight (or several at different places) the relationship between you and your instructor will be very important, so do look around.
Never ever pay upfront for the whole (or even half) the course.
I would start the ground school at home, make time for it - and supplement it with your instructor.
Good luck and let us know how you get on!