Amazing!!! Congrats- this is no small feat 
. It’s great that you have this exciting goal to carry you into next season.
This brings me to your question:
I’d consider your motivation levels when making off-season plans. Your motivation is often an indication of where your body is at physiologically, and therefore a helpful indicator of how much of an off-season you need and what that looks like. One of the main goals of an off-season is to regain motivation to a level that will sustain you throughout the long season ahead.
Regardless, a complete break is beneficial for many reasons so I strongly suggest you take some time completely off of the bike, even if that is just a week or so. As for your approach when getting back on the bike, Jonathan shares some 
golden advice founded on scientific principles in the podcast clip I’ve linked below. I think his advice will be incredibly helpful for you.
You may also find this blog post helpful: How to Plan Your Offseason: When to Start and What to Do.
In addition, this clip below compliments the discssion above.
Let me know if you have any questions about any of this information. I’d be happy to dive into more detail if it’s hellpful :).