Just focus on the stuff you enjoy, and don't overburden yourself going too fast if it's going to be pointless in the end.
You might benefit from making some longterm goals in a farm that aren't super rigorous or boring, and then work towards those, without really worrying about how long they take. Something like completing the community center, doing stuff on ginger island, completing a collection, fully decorating a farm, or perfection are all good things with varying levels of difficulty.