Agree with all of the above. You get one set of ears for life, and they are damn hard to fix.
Tinnitus is caused by a neurological problem: the brain is no longer receiving certain information from the inner ear, this is not normal so it decides to make some sh*t up, filling in the frequencies that have gone missing.
Hearing aids are not like glasses. They do not compensate for a slack eardrum, they just try to make the most important frequencies loud enough so they can be perceived over the damaged parts of the hearing system.
There's much more to tell but I've run out of time for now...
Protect your hearing from sustained loud noises, always!