I do struggle with this. I think it stems from a few things for me. I have developed some low self worth possibly due to family issues such as a dad who could be very critical and had a temper, and being made fun of when I was younger/treated poorly by peers. I think this low self worth can become a negative cycle, because if we start to act like we don't deserve things and friends, then the world takes us at our offer, or we miss chances to meet people, or accept less than we deserve in relationships, building upon this negative self image. In addition, I struggle because of mental/physical health problems that have made me different and not able to keep up with my peers, isolating me. Also, depression makes this much worse since it can make us feel worthless as a symptom. I am working on evaluating myself more objectively, but it's hard to unlearn.

I think it is a good thing to address in therapy. If you avoid making friends, you will miss the chance for outside perspective that shows you you are worthy.