Dave, sorry that you got hit with this.
From experience over the past 3 1/2 years:
Loss of judgment of distances--large and small--is a PITA. However, you will find that reaching for things, walking on smooth surfaces, and many manual activities can get better to the extent that muscle memory gradually takes over for the depth perception. YOu may teach yourself, without even noticing, to use more "feel" to substitute for depth perceptiton.
Your brain is also likely to have you lookiing twice a things--both times with the good eye, but turning your head slghtly for the second peep--in a subconscious effort to approximate the dual vision necessary for depth perception. You will for sure find youself doing this deliberately if you are doing some precision activity like locating where to put a hole with a drill press.
Driving may or may not be out of the question--be very careful. E.G., I will probably never again pass another vehicle on a 2-lane road. In fact, although I passed my latest driver's license test, as a matter of domestic tranquility I let SWMBO drive me when I'm out and about.
Re the dog--I got a pup with the intention doing what training I could get done locally as a service dog, and got lazy when my vision did not deteriorate further, She is now a family member, and I'm damned glad she's here being just a dog. I'd recpmmend that you do better, and get yours trained up at least to good obedience in public places--then be very glad if you do not need her/him as a service dog. Goldens are generally great companions. Mine's a half-golden, half poodle--seems to have golden personality and poodle smarts. If you go looking,avoid the puppy mills and find a reputable breeder with the pup's parents on the premises.
Apologies for the long ramble.
The point is that life is different now, but you can make things work.
Sound, valuable advice - sounds like advice from experience. One thing to seriously consider while adjusting to walking outdoors - get a cane. It helped me a lot, and actually saved me from throwing my back out more than once when I stepped in a very shallow dip in the ground - a slight depression and a hole look all alike with one dimension vision. Also dandy self defense weapons.