What are some personal finance mistakes that people should steer clear of?

One mistake to avoid is boasting about your wealth to others. It can lead to resentment or attract people who are only interested in benefiting from your money. Instead, it's important to remember that people are often more focused on their own lives and not impressed by the wealth of others. Being a chameleon and blending in can be beneficial, avoiding flashy purchases like expensive jewelry and bling. While you may still want to indulge in a luxury item like a Mercedes, consider buying it used to avoid unnecessary attention and expectations from others. Additionally, dressing appropriately for your surroundings can help avoid drawing unwanted attention to your finances.