Echo what others have said. I’m on my sixth puppy - but the first for 15yrs. I was based at home for the first 4, my exH was working from home for the 5th. Knowing what a tie they are I waited until I retired to get another, though I have had a couple of older rescues.
My current pup is a golden retriever, I was on her breeders waiting list for a year. I knew what I wanted in terms of breeding, health tests, temperament etc. She’s now 18 weeks, so I’ve had her 10 weeks, and we have another older rescue terrier. I cancelled all the activities I was involved in, arranged for meetings to be at my house rather than anywhere else, and have had a totally restricted social life.
Bit by bit I’ve left her for longer periods of time, both with the other dog and on her own while I walk him. Retrievers (including labs) are particularly social dogs, they are also prone to joint problems if over exercised when young - their exercise needs to very carefully managed.
Otoh, my little rescue terrier, once he settled in, was very happy to jump into an armchair and sleep for England if I went out. With any dog you really do need to take some time off to help them settle anyway.
It really wouldn’t be fair to a lab puppy to get one at this point in your life.