Self Deprecation

Why is it so easy for me to see the ''good'' in everyone else ANYONE else....... but me? It was brought to my attention that I quite frequently self deprecate. My first response to this was ''Oh my gosh! I am so...stupid! '' But, then I thought about my kids. What am I teaching them when I put myself down as I so often do? Why can't I just accept a compliment? Instead of saying ''Thank you'' I always try to convince the person why they should reconsider. I hear myself. I tell myself to ''Just shut up! '' But, I still manage to sound like a fool listing my many flaws (just in case they hadn't noticed them) . I have to stop this. I need to find a way to accept praise and love myself.