Called God a bad name in a fit of rage

I am 35 and have stage 4 cancer. Husband and I can't have kids, I was diagnosed with recurrance 5 months ago and I am at an absurd angry stage. Every little thing triggers rage cause I am so frustrated and God is SO quiet. I was crying and doing the dishes, I was SO angry and told God to go F himself if this is what he want for me. I felt instantly bad and apologized. Did he forgive me?