As it is a skinny jean, you do have to do a bit of a denim dance to get into them. You have to go tight when you're pulling on your skinny jeans and you might think you're not going to get past your knees. Go past knees, wriggle into them, pop your bum in, pull them over and go nice and tight.
Remember if you can fit a whole hand down the back of the waitband of your jeans, they are too big and you should try going down a size. The aim is just to get a couple of fingers down the back of the waistband.
So definitely go down the size. You honestly won't look back.