I mostly stay home and don’t go outside home except for work, so please recommend something inside my comfort zone

reads as:

please tell me how to find the fulfillment I’m missing without growing or changing

To which the only reasonable response is: No.

Make something. Electronic gizmos. Wooden thingamabobs. Textile whosawhatits. Repair lawnmowers. Whatever speaks to you. Find other people who do it already, learn from them.

Better still, make a better world—find a local civic group and volunteer. Put up animal boxes. Walk dogs at the shelter. Pick up garbage. Engage with vulnerable kids. Feed the needy.

What you’re feeling is far from novel or singular. I have no idea how we as a society have managed to forget how to deal with it. It is the very reason anyone does any of those things.

That smoke you see in the distance is actually steam rising from Japan’s numerous nuclear plants as they prepare for the incoming demand from the armada of fax machines about to be turned on at Nintendo’s lawyer’s offices.