How do I handle the pressure of engineering things that go inside people's bodies?

What you build ends up inside real human bodies, and the rules and the risks are heavier than any classroom made them feel. That gap between school and the real weight of it is something almost everyone in serious work hits. Feeling it does not mean you are not ready. It means you finally see what is at stake. The regulation that feels crushing is actually on your side. It exists because people before you learned, sometimes the hard way, how much can go wrong. Treat those rules not as red tape but as the collected caution of everyone who came before. You are not carrying this alone. You are standing inside a system built to catch mistakes, if you use it honestly. No one asks you to be perfect. They ask you to be careful, to check your work, to speak up when something feels off, and to never cut a corner you cannot defend. Do that, and you have done your part. One step: when the weight spikes, slow down and walk through your process one step at a time. Diligence, repeated, is what keeps people safe, not fearlessness.