Saying No

Today I said no to something. I actually wrote an email and told a committee chair that I wouldn't do a job anymore. It is so hard for me to say no. In fact, I also quit another club at the same time. I'm trying to take some pressure out of my life. I wonder if it will work. I'm not telling my DH yet as he will have too many questions. I just want to quit these things and not talk about them to anyone.