Do not surrender, there are still some things you can do...
1) find where the centre of gravity is...how far it is from its correct position.
2) as Lex suggested put as much weight as possible in the back ( it could be hidden later inside a fake external fuel tank)
3) and add negative tilt on the outboard to get the nose out of the water with a burst of trust
4) skin your hull and remove all that weight then seal it again being more conservative
Do not give up, your boat deserves a life
Good luck