So you work 30hrs a week, live and eat at home, and “travel” day to day. Buy a bicycle and stop buying shit off of the internet. Since you have literally zero actual “needs” expenses, stick to the 50-30-20 budget but instead use 30% for fun and the remaining 70% to invest or save. Eventually, you’ll have some form of compounding interest or a savings that will be enough for when you move out and be an adult. These are basic skills you NEED to have. And stop saying “but like whyyyy”.