Information on hearing aids?

I don’t know the names of the hearing aid lol but I know the kinds, which is:
a hearing aid for fully deaf person
a hearing aid for can’t hear right (young)
a hearing aid for losing hearing (the olds mostly)

I think they are offered for:
~minimal loss
~moderate loss
~severe loss
~acute loss

I also think they come in pedo (child) size and adult.

Go see an audiologist. The correct type of hearing aid for you depends on the severity of your hearing loss. There are in the ear aids of various sizes and behind the ear aids. All sizes have different levels of technology available from basic to advanced. With advanced having more features and being more expensive. I would go with a well known hearing aid manufacturer such as (in no particular order) Siemens, Starkey, Phonak, Unitron, Resound these manufacturers can be programmed by any audiologist. If you go to beltone and get a beltone hearing aid you are stuck always going to beltone because no one else can do anything with it.