1 day a week to fast is pretty easy, actually - you can choose to do 24hrs (ie. eat supper at 6pm on Thurs, don't eat again 'till 6pm on Fri) or even a 'full day' fast (ie. eat supper on Thurs, don't eat on Fri, eat Sat morning). Either is a good way to just get in touch with how YOU respond to fasting.
Try it, if it doesn't feel right for you, it's pretty easy to move on to the next idea. I will caution you, if you eat more processed foods, or drink lots of caffeine, it will be harder. But as long as you don't binge the day before you fast, you should be just fine. Enjoy the experimentation!
A couple of resources about intermittent fasting: