I've been wearing them for almost 20 years and I feel lost without them. You are hearing sounds you have not heard in a long time and some things are disturbingly loud. Over time your brain will adjust and you will feel lost without them. One caveat though, you MUST wear them all the time except when sleeping. I had friends that would take them out if they thought things were too loud, like in a restaurant. They never were able to adapt to them because as soon as they felt uncomfortable out they came.
You have to make a commitment to learn to live with them or you are wasting your time and money.
I cannot wear ones that go over the ear. I knock them loose a dozen times a day so I only have the in the ear models and am comfortable with them. My hearing has gotten worse over the last few years and I have a new set due in later this month. I can only hope they have advanced enough that my hearing will improve with them.
Good luck with your new aids.