Everyone makes mistakes. That’s a part of life. You live, you do, you learn. How else would we know what to do and what not to do? We can’t count on people to tell us what’s right and what’s wrong forever. We need to experience it ourselves in order to know if it really is right. Or if it really is a mistake.
See, everyone has their own opinion about it. And yes, some things we can all agree on are completely okay and some things are completely wrong. But the little things, like what’s right for one person, you have to find that out yourself.
And as for other people, let them judge. Let them think whatever they want. This is your life. Your decision. Heck, even your mistake. They might have told you not to do a certain thing and you did it anyway, but who cares. If they are really your friend, they stick by you no matter what.