You need an emergency fund equal to 3-6 months of living expenses. Calculate the amount based on what it would cost you to live on your own, instead of with parents.

General guideline is to invest at least 15% of gross income for retirement, starting in your 20s, to be able to retire in your 60s. If you can do more while living at home, that is an excellent idea.

Are you paying estimated taxes yet? As a contractor, you are responsible for employee and employer share of social security and Medicare tax, plus paying in your own withholding for income tax.