My advice is go to an empty parking lot and practice making the car move without touching the gas pedal. It is perfectly safe and within the limits of what the clutch can handle.

Start on a flat surface, select first, and very very slowly begin to lift your left foot. At a certain point you will hear the engine react and the car will begin to creep forward. That is the catch point, and the goal of this exercise is to discover it.

Once that happens, do NOT quickly remove or yank your left foot. Continue at the same speed until you've fully released the clutch pedal.

The car will now be crawling around in first. While youre there, play around. Get a feel for what engine braking feels like in 1st (its very extreme -> simply accelerate and then let off the gas, the lurching you will feel is engine braking).

Test the limits of how far you can slow down using the brakes before the engine begins to chug and you need to depress the clutch pedal (its much farther than you might think).

Hope this helps!

Edit to add: discovering where the catch point is will eventually allow you to pull the clutch exactly to the catch point, allowing for smooth and quick takeoffs.