I think people often feel guilty after suicide attempts but this is a time to show yourself a little compassion. Your attempt was an indication of how much pain you were in, a symptom of the disease, depression. You're seeking treatment and have nothing to feel guilty about. It's true that depression has an impact on those around us, but right now your depression is so severe that you need to be gentle with yourself.
The other thing is, if you're actually coming up with a plan every day, it might be worth considering another round of hospitalization. Unfortunately, most hospital stays for depression are only for a few days and that is not long enough for any real impact.