What do you use your car for? Do you want a daily driver, a show car, or a race car?
I'd recommend driving the car as it is for a couple months at least. Modifying a car is about making it your own and improving what you don't like about it. You can't do a good job of that without getting to know the car. Take a look at the build threads on the forums and think about what you want your car to be and see what other people have done that could get you there.
I also recommend taking it slow because you can't know how your plans will change as you learn more. My first mod was an exhaust. With all the torque these cars have low down they're quick on the road but they sound like vacuum cleaners. That led me down a very expensive road that eventually turned my car into a track car. When I bought my car I never intended for that. If I had thrown money at wheels and coilovers, or air bags, for the sake of fitting in before I went down that road all that money would have been wasted. I would have had to sell it at a huge loss to the buy track proven parts. It can go the other way too, show cars don't need three way adjustable coilovers and daily drivers don't need coilovers at all.
The Internet will always tell you two things, go low, and add power. Doesn't matter what you drive, those are the only two things that matter. Figure out if you actually want them, if you do that's fine, just make sure you're doing it because you want to, not because the internet wants you to.