Although I can’t make a diagnosis on the basis of a letter, what you report is consistent with depression. You feel hopeless and helpless to change anything. You are isolating and you are terribly unhappy.
Without talking to your therapist, I can’t make a judgment about how she is treating you. I can only ask if she is specifically addressing your symptoms and your resistance to change. Like many people who are depressed, you may want to change but feel hopeless about the possibility for success. You may need some medication for awhile to take the edge off so you can benefit from whatever is happening in a therapy hour. That’s not necessarily a recommendation. Since I haven’t talked with your therapist, it’s just a thought.
Meanwhile, you need to get on your treatment team. Instead of working hard, you are justifying your distance from others by claiming that the world is boring to you. Therapy only works if the client is willing to work on making a change. If you trust your therapist, you need to do your part by sharing your innermost thoughts and by trying out what she suggests. If you don’t trust your therapist, you need to step up and talk about it. If you can’t get to a position of trust, you may need to look for another therapist who is a better fit for you.
Therapy does work. But it only works when a client partners with the therapist. I hope you will find it in you to join with your therapist in the goal of defeating your symptoms instead of sinking into depression and defeating your therapy.
I wish you well.