Stopping on a hill is very much the same as stopping on level ground. Brake gently and then apply the clutch before you come to a stop to ensure you don't stall. You will only ever stall if the vehicle is moving too slowly for the gear it is in. You will never stall if the clutch is engaged.
When moving off, it is best practice to have the handbrake applied initially, Set the revs a little higher than usual - you will need more revs and more momentum to move against gravity if you're trying to ascend a hill. Gently lift the clutch to the bite until the car engine starts to pull, remove the handbrake and apply more or less revs if necessary until you start moving properly. You can then lift off the clutch completely and drive as normal.