What does it mean if someone says ...

I was really patient when I was younger. I’m patient now.
I don’t know why I was patient when I was younger.

If someone says "I was really patient when I was younger. I’m patient now. I don’t know why I was patient when I was younger," it means that the person used to be patient in the past and continues to be patient in the present. However, they are unsure about the reasons or causes that led to them being patient when they were younger.