Your personal brand is judged by people each and every day usually in the first few seconds. As soon as they meet you they are looking at your appearance, listening to what you say and also how you say things. Their brain automatically does it as they measure you against an ideal they have in their head. (Here are all the characteristics of personal brands if you would like to review them.)
You have to decide if your brand is showing up the way that you want it to or not. Your credibility and reputation are at stake which can be affected forever if things are heading in the wrong direction. Think about celebrities who were at the top of their game and everyone loved, but then they do something that crossed a line for people and their credibility was damaged. They may be able to come back from those situations, but there will always be a mark on their record that is brought up when they are discussed.
Define what you want your personal brand to be and begin “being” that person. It is as simple as that. If there are things in your brand that aren’t where you want them to be, then ask for help to improve them. I have seen these perceptions change, but consistency is key for people to see it as “your new brand” and believe it. What is your personal brand saying about you?