So the best thing to do is finding your password. Try to check in a place or thing where you usually keep your passwords or important details. You can try to check in your old notebook in your old drawer. You can also try to check it in your browsing history if you didn't tried clearing it.
Hope you know 7 to 8 years ago is not 8 days ago, and that all of these suggestions though not bad but I don't see them leading him to anywhere close to what he's looking for going by the years gone by especially for a browser history.
In .my opinion OP should just forget about it since he can't get the password to access the wallet from his head and from all indication it doesn't show that he had the password written down some safely 8 years ago that should warrant a search anywhere. It's painful to agree but he should just let go, maybe in the nearer future there maybe possible technological brute solution to such case but not until then.