I've gone on vacation mode a few times for various reasons and if it's prolonged then honestly, yes, it will be harder to come back from. In my experience, you do lose momentum. However, I think it all comes down to what you're looking to get out of this. If you feel that your family needs more of your time and this is more of a hobby, than to me, I thik that's a no brainer. You can't get the time with your family back.