Explaining your value to prospects and referrers is a massively underrated skill.
How many times have you been impressed by a lawyer, accountant, banker or engineer?
No one taught you how to do this in this at law school/accounting school/engineering school did they?
You can't just give a history lesson as no-one really cares how long you have been practising, but need to know more about what results you have achieved for clients.
If you get this right I will guarantee you will be in an elite group of maybe 5% of practitioners who get it.