Fairly nerdish, but I done a spreadsheet on nappy costs of ones I've tried. This is UK prices with 20% tax added. It would be interesting to add what point the nappy starts to leak, or no longer gives you confidence. Bigger numbers don't automatically mean a better nappy! I'm slightly unsure on some of the absorbancy numbers but these are what I could find on the net. If you know different, let me know. The table is ordered by the cost per 100ml. This is for medium size and buying per pack.
Here's some self care tips. Remember to reach out to someone if you are struggling. https://www.mind.org.uk/information-support/your-stories/my-tips-for-christmas/#.XgHLoTOnyf0