I think budgeting and practical finances should be taught at multiple stages throughout a student's life. I thought I knew the general idea but didn't appreciate how much neglecting it would set me back.
What is your process for budgeting? As a starting point this article lists a few methods.
I use zero based budgeting where every dollar is assigned a purpose. I don't end up sticking exactly to the plan, but I do keep a spreadsheet which lists my current balances and all expected expenses, so I can see my future balance and avoid going in the red. A couple times a month I cross off expenses which have been paid and update the balance. This is especially helpful to me because a big portion of my income is irregular month to month.
I mostly use the envelope method. My parents used literal envelopes when I was growing up, and somewhat early in my adulthood and in my career I came upon the online bank Simple. That bank changed the way I look at finances and saving money. So I still do it the way they taught me to do it.
I now use a bank called Monzo, and they are working toward building in a very similar budgeting method to Simple, with "Pots" instead of envelopes, that automatically get filled with money every paycheck.
I previously had Simple, and One before that, but banks don't seem to like the buckets/pots/envelopes paradigm. You said Monzo is working towards it, what does that look like currently?