If you spin you must shoot, you can't dribble all the way to the rim. If the defender stops you, stop in a box (at an elbow), throw it to a coach, pop back for a pass, take him again.
a) Off the catch
The attacker starts at the foul line, if the defender is playing normally, step across him, get your hip on him, don't use your arms, break out, catch where you want to catch it, square up, you eliminate walks by always having the same pivot foot, whichever foot you are more comfortable with. If the defender's hands are down, shoot.