I have played a fe rounds where i have played 3H from the tee, or 4 iron from the tee on courses that are not "CRAZY" long.
It was a really good experience.
Not only was it good practive with those clubs, it made me use a different set of clubs for the approach.
Sometimes, you need to put a club on timeout
Try something, and see how it goes.
Watching the US open, they're using all sorts off the tee, Michkelson with a 4w on 2, Tiger with a 3iron on 2, go for it.
Dont be afraid to try things. Borrow someones driver for a trip to the range and a round, sometimes you just need a change.
Good luck, have fun with it.
Dont be hard on yourself, the game is hard enough already without you making it tougher than it is.