That's the problem, I really didn't think I needed your permission.
And obviously, neither did HE! But, again, you're the one asking what he thinks you should do.
If you don't care what he thinks, don't ask.
If you're looking for insights from someone who might have more experience and understanding than you, that's great, but don't be bitter about the answers he gives.
As far as a condescending tone goes, there is a lot of difficulty in making an honest assessment and not hurting the feelings of anyone who might end up on the "wrong" side of that judgment.
Can you defend yourself? Very probably yes. Possibly, no, not well enough. The same might be said of any of us. Practice the best you can, as often as you can, and seek advice when you're able (if you can stand to receive it).
When can you carry? Legally, probably as soon as you have a permit and a gun. Practically? As soon as you know enough to be safe with that gun under all conditions and will not be a danger to others.