How do I grow my company without it falling apart?

You have proven you can build the company. What defeats you now is a different problem, growing it without it breaking, keeping the thing alive as it gets bigger and heavier. That is a real wall, and hitting it does not mean you are failing. It means you have outgrown the way you did things at the start. Here is the shift. What built the company will not scale the company. Early on, you held everything yourself, and that worked because it was small. Scale breaks when you keep doing that at ten times the size. The job changes from doing the work to building the systems and people who do the work. Letting go feels like losing control. It is actually how you keep it. Pick the one thing you are the bottleneck on and hand it to someone, with the authority to actually own it, this month. It will be imperfect. Let it be. Scaling is a series of controlled handoffs, not a heroic solo push. You built the thing. Now build the structure that lets it grow past you.