Four years into a thing you hate isn’t a reason for year five. Past effort isn’t a contract.

Time already spent cannot be recovered by spending more, though the mind insists otherwise. Those four years feel like a deposit that will be lost if you stop, so continuing starts to look like protecting them. It is worth being honest that the only question in front of you is whether the next year is worth its own cost.

Ask what you would choose if you were arriving at this today with no history. If the answer is clearly different from what you are doing, that gap is the thing to sit with. Leaving is not a verdict on the years, and what they taught you comes with you.