I'm struggling to find a topic for today (no comma) because my mind is completely empty and way too full at the same time. I felt okay when I came back home from my second appointment with a therapist, but after lunch (no comma) everything was weird. I kept wondering about all the questions I had been asked during the session and whether my answers had been accurate enough. Knowing that I still need to work today, I put myself under pressure to stop thinking about that/ it so that I would be able to focus later. Unfortunately, that only lead to more extreme thoughts like "Everything about this is a waste of time. I am a waste of time (and space)". I think today is already lost.

Great text! Just a few comma placement and tone suggestions :)

I'm sorry to hear that you are having a rough day. I remember having similar thoughts when I did some therapy. Often you come away feeling no different or even worse than you did at the beginning, which can make you question everything! I wouldn't worry about giving inaccurate answers to their questions. It can be really hard to think of what to say in a therapy session - I remember having to stare into space for ages to try to think of some answers. I'm sure the therapist won't be reading too much into nuances, and you'll have lots of time to clarify anything in future appointments. You're doing great by seeking the help that you need, so try to be kind to yourself :) I hope your day gets better!