You are never really ready to raise a dog or child for that matter. You just do it. I think you are overthinking it and being hard on yourself.
I telecommute and have a complex technical job but it has been so much better than having to work a regular job and raise a dog. Dogs are a lot more adaptable than perhaps you give them credit for.
But, yes, better to back out now, than when you have an older more bonded dog.
NAPWDA Certified Cadaver Dog
Waiting at the Bridge (italics
=GSDs) (hemangiosarcoma=blue):Grim , Cyra, Toby
, Rainbow, Linus, Oscar
, Arlo & Waggles