peanut said:
My Mum told me to give without ever counting the cost. It was very good advice but I have great difficulty following it sometimes.
I agree with your Mum. But did she say you always have to give, or did she mean that when you
do give, you do not count the cost. Do you "see" what I am trying to say?
I am often asked to do things, etc, but sometimes it would be unrealistic for me to say yes to those requests.
I would second Bigonabianchi's advice, give yourself time to think about it, when you are asked to do something. Saying "no" takes practice.