I have 17 mths between my first two, it is my favorite gap
They are now 15 and 16 and still get on really, really well.
It is a little hard at first but i found once we settled into a routine things went quite smoothly.
A double pram or pram with a toddler seat is a good thing to have but when bub is tiny a sling and pram works well too.
I put DD1 in a bed at 15-16 mths before her brother was born, he went into the bassinet for the first 4.5mths and then into the cot. She was well and truly in her bed and didn't see it as him taking it of her.
It is close but I found it a great gap, the 11 mth and 13 mth gap now that was to close!
You will be fine and BB is always here to help