I was very selfLESS for a time being, I tried to help everyone and gave up much of my time to help others when I should've been focusing on myself instead. A few years went by like that and I just grew sick of it, and felt like a complete doormat. (Which, honestly, I was.)
After I began looking out for myself more friends and family said I changed, and I grew more rude and uncaring.
But now I understand what I had mistaken (or rather been told) for selfishness was just me trying to stand up for myself, and be much more self confident and assertive instead of passively going along with everything.