I've also had an incident recently that's left me feeling so very unimportant. It's really hard, I know. When you're feeling that awful though, everything does get warped and blown out of proportion. Negative self talk distorts reality in a huge way, at least I know it does in my case. I know sometimes it doesn't help all that much when you're feeling that bad to just sit and tell yourself that this isn't about being unimportant or worthless, because that feels so untrue. Sometimes you need to tell yourself that stuff anyway, look at the other possibilities, even though they feel untrue. Your therapist probably didn't want to postpone your session and it sounds like they've tried to reschedule you for the next available time. If you were worthless or unimportant, or a burden then they wouldn't have made the effort.

I know looking at things like this isn't a quick fix. It doesn't magically make things better right now. Sometimes you need the appointment for that I think, to really steer you back on track. Please try to resist acting on the thoughts of harming yourself. For me I know that sometimes I want control in some way, or I want to take away some of the emotional pain...it's okay to really want to act on those thoughts...but just keep resisting if you can. One moment at a time.

Feelings and emotions can be really intense and extreme and they can make parts of life so so hard. It can be quite hard to get life back on track and there are many ups and downs along the way. Just because you've lost sight of hope doesn't mean it's time to give up. Things are really bad right now, but you're seeking help when you need it, from here and from your therapist. There is still hope and I know from personal experience that things can be really, really dreadful (for 15 years in my case before I sought help), they can feel like all that there is...but things can still get a lot better, no matter how impossible that feels right now.