As Clive said, RAW is they way to go, if you want to take the most of your camera!
Actually is funny to see that when you shoot raw the cheapest cameras perform very similar the €€€ ones...
The extra space that you need for storage worth every terabyte!
I try to be very simple in processing, just push 4 or 5 buttons in cameraraw!
Putting light in the right place takes time to learn, but it's the key to great images.
Blocking, reflecting and diffusing are basics to control light.
Cheap stuff is enought to do this and it's funn.
You have the gear, enjoy!
cheers