Going through a hard time

I'm going through a lot right now and I really feel like I need to get this all off my chest but don't have anyone to talk to at the moment. My aunt has been struggling with substance misuse to the point where she's not acting like herself anymore and it's really been stressing everyone in the family out, especially my parents, who have been taking turns looking after her since she hasn't been able to function on her own recently (this all started the day after Christmas). Normally I depend a lot on my family for social support since I moved not too long ago and haven't made any close friends in the area. I have a therapist but she's not available this week. I've been juggling this with finding out that my cat has worms, trying to figure out how to take care of that and keep the house clean and take care of vet bills.

Along with all of this, I am also working as a therapist. I haven't gotten many clients yet and have struggled to make ends meet because of this. In the past, I have gotten plenty of advanced notice before getting a client but this past week I got one and the only notification I got about it was in my email (which I forgot to check). I ended up missing the appointment, which I feel absolutely terrible about. About a month ago, I applied for another job to supplement my income and found out recently that I will be having the orientation for that other job tomorrow. The client whose appointment I missed reached out to the job I currently have to reschedule for tomorrow, and I had to tell them that tomorrow is the only time Wednesday would not work for me. Now my boss is (understandably) upset with me and says she wishes she had given that client to my coworker. I don't even know what to do anymore. I feel like I have so much on my plate and nobody who can help me. I've already been struggling with depression and ADHD and now I feel like I can barely even think through all the panic. I feel so drained and hopeless.

@saivi

Sorry to hear your struggles.
The social support issues are tough. It is a lot harder making friends when in the adult world rather than college or earlier.
Adding in the holidays that just passed makes it a tougher time of year for that.
The 'social' family member that I have has joined things like book clubs and hiking clubs to establish a social group in an area after moving.
That may be something you can look into to start trying to find connections.

On the work issue, you really will have to pull whatever energy you can to meet the demands of the job.
It is tough and it sounds like you are dependent on a boss for assignments. That boss will be taking in the needs of the clients and business first when doing assignments.
You will need to focus on rebuilding a reputation with your boss to get more assignments.
Thinking about why you are doing the work you are doing so that you can dive into it with the most effectiveness.
I am guessing you did a bit of training to be able to support clients and you did that with the intention of helping people.
See if you can get yourself during the work part of the day to your best form to be on top of helping people. Also recognize that the job is what helps take care of you and your cat. Try not to beat yourself up about what happened and do your best to repair the damage with your client and boss.

Wishing you the best.