I am only a few hours ahead of you.
Do not under any circumstances book a lesson and then, particularly for the first 10 hours, try and chivvy your instructor to take you up when he/she says the weather is wrong, even if it looks ok from the ground.
The most valuable things about the first few lessons is learning to look out of the windows, and in particular at the horizon, rather than at the instruments. If there is no decent horizon, there is no point going up and that is the end of it. Work on your exams instead.
Most people (me included) who have always wished to do this have at least some experience of flightsims. Flightsims have almost nothing to contribute to learning how to fly a real light aircraft (save perhaps for becoming familiar with the instruments) and one particular reason for this is that with a flight sim you tend to spend all your time looking at instruments.