Does it really matter what others think about you?

I think that it does not, at least thats the logic of it. In reality though, its very difficult to actually feel that it doesnt.
We lived too large of a portion of our lives being taught to care about what others think, that when we finally want to let that go, its very difficult.
That is my experience.

Honestly, I find that the answer is no. It may be difficult to move from this mindset, though...