At 19 years old you're FAR from reaching your peak growth potential.
Train your calves like any other muscle: train it hard, give it enough time for recovery, keep consistent.
You already walk every day, which uses your calf muscles. I'd reduce the training sessions to 3 or 4 times per week, to allow for at least 24-48h recovery time - remember: growth doesn't happen in the gym but during recovery!
Not training it every day also means you can introduce progressive overload, adding more weight whenever you can do all reps and still have some fuel for more (maybe weekly, just a couple of kg every time you increase).
You could also introduce some variation: instead of doing standing calf raises all the time you could do it 2x week and machine seated raises 1x week. There's no need to have much more than 2 different exercises at this point.
As stated in this article by Dr Mike Israetel (emphasis mine):
If you are still hitting PRs on the exercise, it’s not causing any undue pains, you’re getting a good mind-muscle connection, and there’s no other need to change it, then don’t change it! If this means you keep an exercise around for up to a year or more, so be it!
Also you could benefit from doing around 10-20 reps per set:
Because the moderate (10-20 rep) range often offers the best tradeoff between stimulus, fatigue, injury risk, and slow/fast fiber specificity, and mind-muscle connection, an argument can be made that a first-time program design could have most weekly working sets for the calves in this range...
In short, don't overthink. Train hard, train often, don't get injured, keep eating, you'll see your muscles grow.