On the Provo and Green. I’d work on casting first. Get at least semi-proficient before you pay a guide so the guide time can be focused on learning to read water instead of untangling knots.

Sometimes fish just are where they are and covering lots of water is a good strategy. This is especially true during the summer when fishing with grasshoppers. But good places to start are always where fast water meets slow water or where you see clear transitions in depth, shadows, river bottom structure, color, etc. look for pockets of slow water above or below big rocks. Eddies on the edge of faster currents. Deep undercut banks. Anywhere that trout can tuck into slower water to save energy while still being close enough to current to have food constantly carried close by. Look for lines of foam and cast bugs there. Keep your eyes open and make mental notes of where you spook fish.

Then cast your flies to places like that. Start casting mostly upstream and stripping line in as the fly floats back to you.

The learning curve is steep. Anyone can do it but your first few attempts will be frustrating. Stick with it. Find someone to go with who can give you pointers. That’d be the best thing you could do.