As a person
Born on the 19th, or a 19/1 life path.
Leads, with an inner conflict. Its strong side is the ability to lead.
As a day
The 19th, or a 19/1 day, is a 1 day: start things and lead.
As a year
A 19/1 year is a 1 year: start new things and chase them.
Friends and enemies
As a 1. Friends: 7 and 11. The 8 looks after a 1, one way. 3 gets on with a 1.
As a 1. Enemy: 9, the worst pair in numerology.
Gets on with
Enemy numbers
Compounds
1+9 = 10, then 1+0 = 1, so 19 reads as a 1. Every 1 line applies to it.
The 9 behind the 1 brings friction into the leadership.