You've got the same plugs I'm using. I like the three-prong christmas tree looking attachment for my everyday use. I did try the foam attachment you describe. I'm keeping it handy for serious business like long distance flights, big crowds, and obnoxious amplified sounds.
My wife has tiny ear canals so the smallest works reasonably well for her. Even so, she has elected to use foam plugs. Unfortunately for her, I snore like a banshee.
Good luck. I do understand your situation. Always be ready to protect your hearing. Have you seen a doctor or audiologist about this?
Michael