How long will it take me to get used to wearing a hearing aid?
That depends on a lot of different things, the most crucial one seems to be how long you have waited to get help.
Generally speaking those who adapt sooner, rather than later have a much quicker, and easier go at getting used to wearing amplification.
However, today’s gear is so good, and works so well that those times seem to be shrinking for everyone. Normally less than a month, and they become pretty much second nature.
Again, this may take significantly longer for someone with a serious loss, who has put it off for a long time. Those folks take the most time, and retraining to get the most out of their equipment.