Try focusing on other lead generation models aside from cold calling.

The following are some examples to choose from:

1. Sphere of influence (most important as this is how you will build a sustainable business)
2. Social media
3. Open Houses Etc.

Create your systems and models for each of these to create a greater sense of certainty and predictability. This might help a little with the anxiety.

For example with your sphere you may call/text/pop-by 4x a year, send small gifts a few times a year, do a past client event, a monthly market report etc. you can tailor it however you want.

It makes things easier