I got a hearing aid three months before CK. And yes, I did have to get adjustments about every 3 months that first year or so. But my hearing changed very little before/during/after treatment.
We CAN be helped by a hearing aid - there's lots of us on this forum as evidence. There are two kinds of hearing loss - conductive loss (means you have good nerves, but you have a blockage or something which keeps your ear mechanisms from working) and sensorineural loss (damage to auditory nerve from tumor). We have sensorineural loss.
I have severe high frequency loss in my AN ear. But if the sound is amplified past a certain threshold, then I can hear it. So I can't hear soft to moderately loud high frequency sounds, but I CAN hear loud high frequency sounds. The hearing aid gives a boost to the specific sounds that I can't normally hear. Hope I explained this OK.
My hearing aid is tiny, comfortable, digital, and very sturdy. The audiologist programs it with a computer for my specific pattern of hearing loss. I love how it helps me, and I won't go without it in certain situations (at work, at home around soft-spoken family members). I would recommend waiting several months and then getting one. My hearing aid is made by Resound, and I'm very impressed with its quality, and plan to upgrade this fall.