Mothers consistently buy for everyone else and not themselves. Cumulative effect over years is resentment and reduced self-regard. Small monthly purchase — book, coffee out, candle, small piece of jewellery — reinforces self-worth.
What it doesn't need to be
Expensive. Big. Practical. Justified to anyone. It just needs to be for you, because you wanted it.
Set a small monthly budget (£20-50). Buy something with it for yourself each month. The small habit produces noticeable shift in self-regard over months.