Most of people in the world remain effective with this thing that what others think about them. Many of them even become sad when they don't get positive feedback from others. Therefore, many people make the mistake of convincing others about themselves and changing their thoughts, but rarely few succeed in this fight because we can't change the thinking of others.
People will only think what they want to think because they can only see the one dimension of your life. They can't see your problems or struggles. So never try to convince others or to change their thinking. This is a futile effort and it will only increase your pain further.
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Simply live your life as you want to live and leave it to others what they want to think. Keep calm and focus on your life. It is our mind which creates many stories and many times force us to think negatively. There are few people in the world who unnecessarily try to dig into others life and giving them advice about how they should live their life.
These people are most unwanted people in the life and it is important to keep a distance from them. Such people always try to create turmoils in your life by creating emotional storms in your life. So be strong and try to focus on what is essential for your growth.
Only trust people who were there in your difficult time else others are just spectators who only knows to give advice to others how they should live. Do remember that it is your life and only you know how to live it properly.
We can't blindly follow the advice of everyone who comes with advice because many people are not of this mental level that we can trust them and there is no guarantee that they are our real friends. So don't worry what others think, simply keep busy yourself with your life only.
Those who like you or love you, they will understand your stand and those who don't care about you they may give hundred suggestions.