That was just a short blast of anger...didn't last very long....since you posted a guilty, remorseful update 15 minutes later.
Gentle hugs to you LydiaB.
Are you talking with a T about these feelings that you're holding inside? My personal experience has to warn you about repressing the anger. One way or another, the feelings will make their way out. Hurting either you and/or others in the process. Being honest with yourself, and working through the experience/s is something that will bubble until it is addressed.
"I am tired of supporting people for MY FATHER. Where the **** is my support!?"