Budgeting can help a bitcoin investor in several way but firstly what is budget ,
A budget is a financial plan that help a person outlines projected income and expenses over a specific period. It helps individuals or organizations manage their finances, prioritize spending, and achieve financial goals. But when it comes down to the usefulness of budgeting as a bitcoiner
It can help to manage risk when investing ,so that a bitcoiner doesn't overextend himself. Budgeting also keeps  a bitcoiner disciplined about his or her finances, making sure a bitcoiner prioritize his  needs over his wants.
Plus, having a budget in place can help a bitcoiner  figure out how much he can afford to invest in Bitcoin, and when it's time  for him to diversify his  portfolio.
 By tracking  his expenses, a bitcoiner will definitely get a  better sense of his financial situation which makes it easier for an investor to make smart  investment decisions.