Am I having an Existential Crisis?

I had a plan. I put everything int0 this plan: my time, effort, and energy, and to no avail. The universe returned my efforts with a message: there is a greater plan you need to follow now, and it is not the one you were working for (and you know it).

I had put all of my effort into plan B, which did involve a lot of courage: facing fears, working through setbacks, and being honest with myself. However, Plan A is less comfortable, less secure, more of an unknown than Plan B.

It seems I have a choice before me: work towards the life I have envisioned for myself or make a new plan B. The decision seems obvious but, following plan A has me feeling lost, confused, scared, and courageous, brave and strong all at once.

Am I experiencing an existential crisis, or is it something else?