[Jacksonlll]

You don’t need to double clutch up shifting. Just spend a little time in neutral before you go to second. If you want to play with the clutch pedal to spend the time, that’s okay.
If you are not in a hurry, just quickly shift from 1 to 2 as soon as the car is moving. Just use first gear for launch. You can’t screw up the 1-2 shift doing that. Second gear will pick up the load nicely.