Help

How many times do you have to turn the other cheek until its enough?
When can you say " I need to do this for me " with out being selfish?

I try so hard to be nice, and do things for others.

but then im the one getting walked all over--

instead of just helping.

simply because i fear of being mean. or loosing a friend.

but im the only one being the friend sometimes.

So any of you have any thoughts? 

{sorry im really emotional right now. we can thank our dear girl friend, Period for that one.}