First of all, congrats on adding to your household. We currently have 2 cats (11 & 2-1/2 years) and 2 Labradors (11 & 1 year) and to say the least it's an adjustment. However it's one you'll never regret.
Second, make sure the dog learns YOU make the rules, and YOU are the boss. Big way to teach this is while the dog is eating, take the food bowl away for 5-10 seconds. They are food motivated and this teaches them you are in control. Won't take long for the dog to learn. I do this with all my dogs and it REALLY helps when training for hunting.
Third, make sure you are consistent with commands and expectations. I have always trained mine on the concept of "name then command". In other words "Lucy, sit." or "Harley, heel." and of course "Harley quit humping Lucy. I'm gonna need a cigarette if you keep going!"
And last, strong but firm on discipline. Not saying to beat the dog when it misbehaves, worst way to gain its respect. It's a puppy and you will have challenges for the next 15-18 months, however when it does misbehave, let the dog know you aren't happy and it will respond.
Above all, have fun and take LOTS of photos. You will be amazed at how quickly they grow. We got Harley 12/30/17 at 10 weeks and he weighed roughly 10 lbs. He's now 15 months and pushing 90 lbs. I look at pictures from when we first got him and can't believe he was that small.
Aaaaand I just realized the original post was from 3/5/18. Man am I alert!