Some goals become possible only after excitement has completely left.

Excitement gets projects started and cannot get them finished, because it never lasts as long as the work does. Some goals are only reachable by whoever is still there after the enthusiasm has entirely gone, working from something steadier and much less pleasant to rely on.

Assume the excitement will leave and decide now what will keep you going when it does. Habit, commitment, someone counting on you. Whatever it is, it needs to exist before you need it.