Suddenly, our world seems to be coming apart because it seems we had nothing to do with the change. Rarely do people create their own big, discontinuous change. It's very risky. But it can be manageable if you do some planning, and if you clearly and honestly visualize the downside and prepare for it both practically and emotionally. I get the feeling you might be well-suited to dealing with significant risks.
Risk is the only way to deal with desires and aspirations.
To answer your question, I think the approach you're considering is fine. But let me instigate some risky behavior and let's see how far you decide to take it. You'll learn a lot, regardless of how far you decide it's prudent for you to go. Here are some thoughts and ideas. Ignore the offer you have with your company for two weeks.