I certainly wouldn't write him off as nervy quite yet...both of my boys were kind of "funny" at that age. Don't baby him and hang in there.
Odin ~ (aka "Dude") Bh, ADC, SGDC, NAC, WV-N, TG-N, FDCh-G (GSD)
Zuri ~ German Coolie, super pup in training
Havoc ~ (aka "Super") GSD - Rest easy buddy.
Keeper (rest in peace little stinker) (Aussie)