You all sound like you are old. You are only as old as you feel. Me on the other hand, I am old. I get out and fish once or twice a week. I stay out about 4 hours. I catch a few fish and I'm happy. I don't wear myself out casting as I know where the fish are. Usually right in front of me.
I stopped along side of my creek the other day. I got out of my truck and walked over to the bank, about 3 step away. I stuck my arm out over the water and three fish swam away. Another time on the same creek I walked over to a grassy spot to the bank and 5 fish swam away. Some small and some not so small. The vibrations from walking set them off. These are some wary fish. But with the right fly in the right place you will have fun catching. And I'm an old man.