Struggling to manage a monthly budget for a 4-member family – how do others plan expenses and still invest?

Hi all,
I’m trying to improve how I plan monthly expenses for my family (we’re 4 members – 2 adults, 2 kids). It’s honestly a bit overwhelming.

I usually start with groceries and bills, but by the time I reach the end of the month, there’s barely anything left to save or invest.
I want to build better discipline and also save for goals like buying a car or planning a trip.

I wanted to ask:

• How do others here divide their monthly salary into needs, wants, and savings/investments?
• Do you follow a budgeting method (like 50-30-20) or something else?
• What tools or apps help you track everything?

Would love to hear how others approach this — I’m sure many of us are in the same boat. Thanks in advance!