Hello Dolittle. I'm new here too. I"m not especially techy, although I did put in the time filling in a spreadsheet posted by a clever Mumsnetter some time back, different thread. If I can find it, I will post it. You need to work out your income and expenditure. Easier (I find) if you use cards for everything rather than cash. You can download your bank transactions to a spreadsheet and then filter/organise using the A-Z key and then you can see everything you spend at Aldi, Boots, Sainsbury's. If you spend a lot on Paypal or Amazon you might need to dig back into your transactions history on those platforms to find out what exactly you spent your money on - clothes, food, entertainment. Where are your direct debits/standing orders going. The point is, you need to know where your money is going, and if your expenditure is exceeding your income, where you can make cuts.
When it comes to planning your expenditure, I like Claer Barret's method. She puts her monthly income, minus tax, on a sheet of paper, then quarters it, and has one quarter for necessary expenses, one for debt repayment, one for saving and another for fun. Jason Butler is another good writer on money and he has a 'smart spending system' where, again, you allocate money against different broad categories (he has suggested proportions) and you set targets over different time frames, especially for saving/investing. He borrows from Dave Ramsey on this one - a 7 step goal. It sounds daunting, but it's not, you just have to put in a bit of research. All of them emphasise 'intentionality' - every £/$ has a job.
The Humble Penny is a good blog - lots of resources.