I have had some success to report. Spent one day on a stream last week and started out with a rabbit zonker streamer. Caught several brookies so never tied on anything else. It wasn't exactly a trout slaying day, but these were the first trout I've caught on my own tied flies, in spite of the high water, and there is a great deal of satisfaction in that. "Thank you" to the guys who steered me in the right direction. My rod-reel-line outfit is dirt bottom economy grade but I'm having fun. What played another big part of the fun of the day is that I only ran into one other fisherman, another old retired geezer like me, and we had a very pleasant conversation. What a diametrically opposite experience this was from trying to fish flat water for trout with all the associated greed hounds. I didn't land a boatload of fish but it was one of the most enjoyable days fishing that I've ever had.
Good stuff! Keep it going.
It is fun to catch trout with flies you tied yourself.
Besides streamers, you should also tie some basic nymphs.
For a very simple, and very effective nymph, check out the "Beadhead Walts Worm."
If you Google that, and hit Images, you will see some photos of them.
One of the images is from the fly shop Flyfishers Paradise. Tie them like that. That's how they were tied by the originator, Walt Young, when he worked at that shop.
It's just a brass or copper colored bead, and some tannish-brownish Hares Ear fur. That's it. Very easy to tie.
I mostly use size 14 and 16. And sometimes size 12. And rarely size 10.
If the water is high and off color and moving fast, use a bigger one. If the water is slower and clearer, use a smaller one.