A kind a rule of thumb is to keep around 3 to 6 months’ worth of essential spending in an emergency fund, not more than that unless things get really unusual. If your pay is a bit irregular or you’re self employed, going nearer to 6 to 9 months can give extra reassurance, and also a calmer head. The key point is being able to cover rent, food, utilities and those basic commitments, without having to lean on credit. It also makes sense to grow it step by step so it doesn’t turn into a big overwhelming deal. For some students, when schedules get squeezed, you might hear about options like assistance help with dissertation writing, but getting that financial safety cushion squared away first usually cuts down stress over the long run.