Tbh it's been very easy for me. Usually the only time i ate and drank at the same time was breakfast and if out for a meal so it was only a slight difference...
I do confess to occasionally having a drink with food, if i'm in a pub as you feel self conscious sat there without a drink waiting for food.... And some mornings it's only about 15 minutes from having my first cuppa of the day till i have my cereals, however i don't always have the time to wait 30 minutes....
Sugga if you are used to eating and drinking at the same time now is when you should start practising not to do it! It won't be a massive chore then.
Also when you first have surgery and are on fluids it kinda helps you get used to drink, drink, drink, you slowly bring food into it and plan around it...