Young entrepreneur
Discipline at 16 when nobody is making you do anything

School makes you show up. A job makes you show up. The thing you're building at 16 doesn't make you do anything, and that's exactly why it's harder than both.
You don't have a discipline problem in class. You have one at 9 pm, alone, with the laptop open and the block you said you would do sitting there, and nothing happening if you close it.
What discipline actually is
It isn't a trait and it isn't a feeling. Discipline is doing the block on the day you don't want to, and the only reason anyone ever does that's that something makes skipping cost more than doing.
At school, skipping costs you. At work, skipping costs you. Building your own thing at 16, skipping costs nothing today. The bill comes later, all at once, on the day you realize it has been a while since you opened it.
So the question isn't "how do I become disciplined." It's what makes skipping cost something today.
Why the usual advice fails at 16
Cold showers, 5 am, no phone. Some of it helps. None of it's the fix, because all of it depends on you deciding, every single morning, to do a hard thing for no immediate reason. That's the exact skill you don't have yet. Advice that requires the skill to build the skill is a loop.
"Find your why" fails for the same reason. You know your why. You can picture the number, the car, the leaving. Wanting it was never the problem. The problem is 9 pm.
The setup that works alone
Four things, and all of them are about making the block real before you get to it.
- Set the block the night before. Not "work on the business tomorrow." A start time, an end time, and the one thing you're doing in it. The decision gets made by tonight's version of you, who isn't tired and not on the phone. This is literally the Schedule screen in MoreLife: blocks with times, set the night before.
- Make it small enough to start and long enough to count. Not five minutes, which is a trick and you know it. A real block, one you can sit down to on a bad day.
- Put the next milestone where you see it. Not the dream. First client. First order. The thing you can reach this month.
- Give the block to someone. A friend who's also building something. A parent, if they get it. Or the coach: when the block ends, MoreLife asks whether it happened, and if it didn't, why. That question is the cost that was missing.
The fourth one is the one everybody skips because it's uncomfortable. It's also the only one that works on the day the other three didn't.

The stretch that breaks it
You'll do the setup and it'll work for a while. Then results won't come for a stretch, and the blocks will start going missing in the way nobody notices. First it's one evening. Then the weekend. Then you're "taking a break to reset," and the break doesn't end.
Nobody around you'll say anything. Your friends didn't really understand what you were doing. Your parents are relieved you have more time. Nobody notices the week you stop. Including you.
That last quarter is whoever asks. With MoreLife it's the check-in at the end of the block, the same evening, not a broken streak you find in the morning. The setup above works with a person or with the app. It doesn't work with nobody.

The short version
Discipline is doing the block when you don't want to, so something has to make skipping cost more than doing. Set the block the night before with a time and one task. Real blocks, not five-minute tricks that you know are tricks. The next milestone where you can see it. And give the block to someone who will ask, because that question is the whole thing.
You already know what you're supposed to do today.
MoreLife is the one that asks whether you did it.