It is a start.
I lost my hearing when I was 4 years old, and I vividly remember being in the hospital with probes sucking stuff out of my ears. I was young enough to adapt quickly. Thankfully I was too young to notice people treating me like a freak show.
I had a great pre-K teacher that taught me how to read lips. First we memorized fingerspelling only. Every main word she spoke included the first letter of the word next to her mouth. Within a few weeks I was good at reading most peoples' lips.
I lived the next 14 years as the only deaf kid in school, getting by on lipreading and hearing aids. It was tough. My parents did not like how my speech got clumsy and made me take speech therapy until I graduated from high school. I did not know ASL until I went to college with other deafies like me. ASL made my life much, much easier and more fun.
Hopefully your CI will be a success for you. CI's usually are more successful in late-deafened people since their brains are already developed around sound. Your brain will adapt to the new sounds, it is a matter of how long.
I've always wondered why it happened to me, but there is no answer. We all have a reason to be here, and things happen for a reason.
As you are finding out, your deafness brings out people's true colors. Your true friends will stick with you and adapt to your needs. Same goes for family members. Stick around, ask questions, and yes, we have a few members that are anti-hearing, just ignore anyone that makes you feel bad.