I'm sorry you're struggling. It's definitely ok to feel like this. Therapy is indeed such hard work. 'Slog' is a good word- it captures therapy as a marathon rather than a sprint.

Maybe it's ok to take a day off? To allow yourself, just today, to throw your hands up and stamp your foot and say I. Don't. Want. To. And just validate how you feel and allow yourself to rest? You might find that the next day, or after a few days, you feel more able to get back on board.

There's someone (can't remember who, sorry) who posts here that they sometimes announce "I quit!". And their T says "that's fine, for today". They describe it better than this, but it's something that has stayed with me- the idea that our feelings and reactions to this complicated process come and go.

Hope you enjoy your day off, if that's what you decide to do..