I suppose the truth is that every age comes with it's up's and down's. I do know that the older they get, the less physically demanding it gets and obviously you get more sleep, but the truth is parenting is a non-stop, 24/7 job. Hard, but very rewarding. You will find many aspects of raising your little boy becomes easier, but then there are other parts, when he is fighting for a bit of independance, that makes it difficult again. I recon it's a bit of a sea-saw.
As for the 2week holiday, my advise to you is, pick your battles, go with the flow and enjoy being with your family. Make sure he still get's his rest when he's meant to and remember this is all new for him too.
You are doing a fabulous job. All our children really need from us is love and stability, the rest is just decorative.