You didn’t say why you only went to a therapist for one session. Problems such as you are describing seldom are improved with only one visit. I suggest you do two things: First, see your medical doctor. It’s important to be sure there isn’t an underlying and undiagnosed medical issue at work here. If you check out fine medically, then go back to the therapist. If the reason you didn’t go back is that the two of you didn’t connect in a way that felt comfortable to you, try working with another therapist. It’s not at all unusual for a person to try out several counselors before finding the right “fit”.
Please don’t wait another week to make appointments. This is a very, very hard way to live. With every passing week, you are likely to find it more and more difficult to gather up the courage and hope to take care of yourself. You’ve already been dealing with this for almost 8 months. There is no reason to suffer further. Get yourself the help you need.
I wish you well.