Hi KayAnn,
I'm very sorry to hear that your dad is going through a tough time. Even though I have never had the pleasure of meeting you in person, I know that you are a very sweet young lady. Please don't think that you are worthless. You are just as deserving of love and happiness as anyone else. Sometimes in life, we just have to go through difficult times, and you are entitled to feel frustrated and upset. That's perfectly natural. I admire you very much for being able to apologize for not being yourself, and friends are supposed to understand these things. We do.
Isn't it wonderful to have a furry friend to cuddle up to when we're feeling upset? It really does help.
Remember that your parents love you. Remember that when your dad gets angry it's just because he's in pain and his medication affects his moods. Remember that you are important and that your feelings are valid.
Keep your chin up and continue to be brave. The bad times we go through in life only make us appreciate the good times even more.
I'll be thinking of you and your dad.
Take care,
Thelma