How do I finally get my finances under control?

Hi. I have had financial problems off and on since I was 18. I used to incur some debts through online shopping, which I spent years paying off. About 2 years ago I went into a spiral again. Pregnancy - unpaid parental leave and now on sick pay with no income because my ex-employer doesn't come into the money. I was barely able to pay back the cash register by donating and making my own contribution. In principle, all of my sick pay goes to m