The age gap between my two was almost double yours but it was still hard. My biggest advice would be try and get out as much as possible, join a playgroup or somewhere you can socialise with other mums and your older son can socialise too. Its just as hard for them as it is for you and when he's trying desperately for your attention it makes it worse. Try and break up your day with walks, drives, anything you can to get out of the house as it will make the day go quicker. And it will be even better if you can find a group of other mums to do it with.

I can't comment on the age gap you have, but when you are first learning how to be mum to 2 it is hard, in some ways its easier and other ways its harder its just because the challenges are different.

Goodluck