Sounds like you are a natural at casting. You should have a lot of fun at fly fishing.
We might be able to help you more if we have a little basic information on your equipment.
- the pole.. do you know what it is made of? Does it have any markings on it that say who made it, how long it is and what size line it uses?
- the fly line.. is it the same one your grandfather used when he was your age or is it newer?
- the reel.. does it have a name on it?
blue gill and redear are fun to catch on a fly as are bass.
If you can cast 20 yards you should be able to catch any of these in lake wawasee.
If you keep asking questions, the folks on this forum can help you.