So first off, I went on a three day vacation. I read all about it and everyone said I could leave my Betta home for three days without feeding him and that he would be fine. Sadly, I just came home to find my Betta dead.

It makes me feel really bad because this is my second Betta in a month that has died. My first Betta got really sick after treating him for fin rot.
I feel like a very bad fish owner and that I just want to give up on my fish keeping dream.
Am I do something wrong? Should I just NOT by another Betta?
I feel very sad and depressed right now. What should I do?