18 months old is definitely a 'young dog', rather than a 'puppy' but it's an ideal age to take a dog on. (None of the 'puppy' problems but still full of life).
Don't wait, JJ. If you've got the chance to give the dog a home, go for it now. You'll only regret it later if you don't!
Go for it, from your previous thread whenever you feel ready, even if it's straightaway, is right for you. She looks adorable and deserves a new loving home.
I would have liked to have got down tomorrow but new window is arriving but I will ring and see what they say - maybe put a reserve on her until I get to see her hopefully on the Friday. God I am nervous.
As long as you can take her for walks you'll be fine. have to say that what I've known about rehoming centres - they will really test you to the nth degree to ensure you're suitable. Just be prepared for that.