Looks great! How old is the tree? I have two seedling peach trees. Second year. Hoping for fruit next year. So I always ask people for the age of their trees, just to compare
I think they are 4, and since I probably do have less frost free days than you, yours might bloom next year at 3.
Mine might be 5, so I’ll have to count the flushes in the photo to be sure.
Yes, fruit for 2 years now. Tasty too, and not too bad for peach leaf curl. I’ll spray with bordeaux mixture every 3 or 4 years, in the winter, and they have enough resistance on their own that it will be enough.
Plant more seeds? Choose peaches from the grocery store, but grown in an area close by.
Most won’t winter, but some will, depending on how close a match you are with the area they were grown. If you have room, breed in some father davids peach, inedible but tough as nails.
Other wise, go for peaches grown north of you, as they will be hardy varieties.