Returning to Therapy

I don't believe I've made much improvement with this goal since the last time I was here. I've managed to get a steady workout routine going, and I've cut down on how much I drink. However, I'm so insecure with myself. I have been trying to find a job, but haven't been hired. It makes me feel worthless. I don't have many friends, and none of them live nearby. I definitely have too much time to think.And those thoughts are bad.
I had a fight with my boyfriend last weekend. It was very childish. I don't remember most of what I said. I'm scared of losing him. I'm scared that he will realize how emotionally unstable I can be. I don't want to ever lose him, although I know there's a possibility it might not work out.
I'm returning to therapy next week. I'm hoping it will help, I feel like I somehow I stopped working on myself because things were going great with him, and now that they're not, I let myself fall apart.