The real trick is not to think of saving as one big thing, but to focus on one single expense you can actually cut. With 1400 gross and rent plus utilities already eating half your paycheck, you don't have room to be perfect everywhere. Pick one thing: if you eat out a lot, cook at home for a month and see how much you save. If you have subscriptions you're not using, cancel them right away. If food is the issue, shop at discount stores and that's it - it's not pretty to look at but it works. The idea is to find ONE lever that causes you the least pain and that you can actually stick with without stress.
Then there's the sneaky part: expenses you don't see. Check if you're paying for stuff you forgot about - old phone plan charges, duplicate insurance, services you turned on once and forgot about. Usually everyone finds at least 30-50 euros a month disappearing there. Once you've found them, yeah, try to build a small emergency fund (even just 20-30 euros a month if you can manage it). A little bit consistently is better than nothing, because when something unexpected comes up you won't go into the red.
The tough part is that with a paycheck this low, saving is a constant struggle. If your rent situation allows, think about whether you could find roommates or cheaper housing down the line. In the meantime: don't listen to the saving gurus who tell you to cut out coffee. You waste money on complicated plans you abandon after two weeks. Keep your head on straight, one expense at a time, and be happy with whatever you manage to save.