As someone who has employed people after gap years, I can tell you that everything depends on your attitude. Of course, it will be a little harder. You'll have to either have strong relationships that'll get you a job or someone who is willing to give you a break. Then you will have to adjust again to a life in which most of your time is spent working, and have patience and grace as you learn and gradually catch up with your peers (or maybe never catch up). If you can do this, the gap will be great because you will return with personal growth and confidence. However if you get insecure and behave in an entitled way, then that's what will create problems for you.