Some people deliberately may talk about you wrongly to distract your mind, especially, when you are working on any project or aim-based effort, ignoring them is the best way to come out from their trap.
People always criticise successful people just because to let him/her down. But the wise person doesn't mind it and goes on the path he/she chooses.
One has to be more disciplined and start neglecting the remarks of such people. I know it's not easy but we need to practice it to make our life good.
One has to start finding the ways to get happiness. We should choose things we admire and should try to occupy our mind with the things we like so that we may not get a time to think about what people say about us. People who think more about what people say about them often get suffered from depression and other such diseases.
Always focus more on the things you have decided and that way you may not be able to get distracted .
" The two most important days in your life are the day when you are born and the day you find out why? "
– Mark Twain
Similarly, many people may be talking bad about you. But never give importance to such bad talks. Continue your efforts and see that you will reach your goal as planned. As long as you are sure that you have not committed any mistake you need not worry about the useless talks of other people. We should always concentrate and focus on our goals but not on the other no value issues.