I think the game is designed to let each of us play it with our own goal/s in mind. For example, in VV, some try to create a tribe of say, all blondes. You may want an entire bloodline of all kitchen careers; Or you may want something entirely different. The possibilities are nearly endless and the goals are entirely up to you.

My daughter's list of goals might help you:
1) Finish all the house repairs
2) Get all house upgrades
3) Finish all the collections
4) Get all the trophies
5) See how many generations I can get
Or, as she said to me, "at least see how far I can get before I get interested in something else and quit."