“I used to be mean, but I’ve changed and I want to share the gospel. How can I overcome my reputation?” Liahona, January 2015, 62
First of all, don’t let fear stop you. If you have been touched by the Spirit and are trying to repent and change, that is a marvelous thing. Remember, this change happens through the enabling power of the grace of Jesus Christ. With His help, you can become a new person and start to change your reputation. He will also help you share the gospel. Though changing your reputation will take time, it will be worth it. Here are just a few things you can do in that process:
Apologize to people you know you’ve hurt.
Go out of your way to show kindness to people you wouldn’t have shown kindness to before.
Always be sincere and genuine.
If the people you hang out with are unkind to others, either get them to stop it or stop hanging out with them. Otherwise, people will lump you in with them.
Consider studying Moroni 7 and praying for charity.