I suspect there is a language barrier. The basic idea of hearing aids is to make certain frequencies audible by adding more gain. If there’s enough damage to the cochlea, no amount of gain will be useful.
That’s where word recognition tests come into play. If sounds are as loud as you want and you still can’t understand more than half of speech, then no hearing aids in the world are going to be a great help. That’s where an evaluation for a cochlear implant would give you a lot of good information. If your word recognition scores are low, a more powerful UP BTE is not going to help. If a cochlear implant is out of the question, some hearing aids use frequency lowering to make the higher frequencies audible. I think Phonak’s is the best, but it takes careful adjustment and still a fair amount of people don’t like it.