Learn to drive with either weekly driving lessons or an Intensive Driving Course.
It is not impossible to fail your driving test as a result of stalling the car, however, it is highly unlikely. Most people who do stall the vehicle will only pick up a minor fault. If it happens to you on your driving test, the most important thing is to react to the situation appropriately, quickly and safely, and focus on the rest of your driving test.
What to do if you stall your car: