Sorry to hear you've lost a bit of the passion for our great club, I've supported Inter since about 1992 (football italia came to channel 4 in the UK, I was hooked) I've not experienced what you are going through thankfully I still scream the house down when we score and punch my desk when we get scored past, Moratti was an absolute hero and it's sad to not see him at the helm however I've always and always will get behind whoever is trying to take our club to the top.
Watch some Inter classics, discuss Inter memories with your friends, look over some of your memorabilia, remind yourself of times you've cried over the club in joy and in pain... once you are black and blue you are black and blue forever, it will never go away so don't worry to much, it will come back. Stay safe and Forza Inter.