1. Turn ABS back on.
2. When you start the car out of the garage in the lobby, as soon as you get some clear track, depress the gas and then brake all the way to calibrate them. You only need to this once each session you turn on the wheel. Once calibrated, it's calibrated until you unplug the wheel again.
3. Find a garage with tunes you like. Look in the tuning forum. I say this because some cars have idiosyncracies that can be tuned out. You could end up driving a difficult to control tail happy car or an understeering slug and think the problem is you and it's not, it's the car. Eliminate that variable. You can go back to driving stock cars later.
4. Start around 400PP on CS tires with a car you like, with a tune from a garage you like, and practice, online, with tire wear on. Tire wear off, is slightly more grip, and offline is still slightly more stable. If you can drive online with tire wear on, you can drive anywhere. Then move up to 450SH, 500SM, 550SS, 600RH etc. These PP/tire combinations provide more than enough grip for consistent driving, but not so much that they overpower the car like throwing RS tires on everything does.
5. Tsukuba is a good track for practice. Deep Forest and Trial Mountain are good for undulations and have a little more grip than most tracks. Road Course Indy for handling big flat tracks and high speed braking.
6. Enjoy yourself!!