Have your savings tied to a particular saving objective. For instance, you're saving to buy a new gadget (a phone, laptop, etc); or you're saving to register for a program (learn a skill, further your academic studies, etc), or you're even saving to sponsor a desired activity, maybe go on a trip.

Don't just save for the sake of saving, it's easier to compromise that way. But once you save for a particular objective, that reason keeps you in check and disciplined.