takabesan, I understand what you mean, I heard of someone who has gone through a different course of life like the one you are considering. That person, sadly, never got married, but got fulfillment from work.

It is a dilemma to go all out for it or not. You have to play it cautiously if you want a family in the future. The best thing is to work out a parachute plan, so you have an easier transition to your dream.

The parachute plan is like a survival kit of what you will need if your position was terminated. It will be based on your own specifications/needs.

The most ideal thing would be to be transferred to where you can pick up contacts through networking. For example, make contacts with those have went through that process to change professions.

I stop right now, these are just my suggestions. I am not the person who went through such a transition, so I stop here. Good luck on whatever you decide. Hopefully, there will be others who will provide feedback.