And if one year your returns are better, you get a raise the following year. I always suggest, trying to live on a 3% return based budget. If you average a 7% return! you will get a 3% raise every year and you can use 1% for big ticket items.
Also, if you retire at thirty, your burn rate might be kinda high. I would suggest staying employed, but not stressing the paycheck. You will stay sharper too!