I think I am a sex addict...

I love sex. All kinds of sex. My husband is great in bed but even after we are done I always want more. Whether its vaginally or lately i have been on an anal kick and God it all feels so good but as soon as he comes (which is like 20-30 minutes or more) i don't want it to stop. He tries toys and tongue and fingers bit nothing satisfies like the real thing. I want to do all kinds of fun sex things and never stop. I think about sex all the time and get really mad when my hubs is too tired or turns me down. I can't get off with maturbation - I need the real thing. Any thoughts on what to do?