That is not as bad as I have seen, Use a sander and smooth it out and put some paint on it.
P.S.Chock it off as a learning experience.
We all go through it.
1995 Maxum 2400 SCR 5.7 A1 G2 LUNA DE MIEL
1988 Bayliner 2455 5.0 IO (sold)
1987 Seaswerl 18ft C. Cabin 4.3 IO(lost in fire)
1976 16ft. Tahiti 2.5 IO (sold)