Judgemental people are always something you are going to encounter throughout your life. No matter how old you are or where you are in your life, there will always be someone who disagrees with what you are doing. It is easy to restrict yourself because of this. You can restrict yourself from doing what you want to do as you're too nervous about others opinions. This is something that I have done a lot in the past, which has made become somewhat rebellious in the time after. You tend to put yourself in a box due to the fear of what others will think of you, which when you build up the courage to break out of the box. You can sometimes do something which is out of your nature. This is what I have found with me, but I know that others react differently.
The way I tend to deal with judgemental people now days is to listen to what they say, as sometimes their thoughts can help. So I take time to breathe and reflect on whether what has been said is true or not. If it's not for whatever reason, even if there's no exact reason other than the way you feel, I would continue to do it. As long as you're happy, safe and healthy whilst doing the thing that people judge you for that's all that matters. The only person who's going to be with you throughout your whole life is in fact you, the person reading this right now. So you should live your life for yourself.