I weigh myself every morning, it's part of my routine, I try to do it around the same time and in the same part of my routine.
I only compare week to week, I recently started a weight chart on lily slim, the fluctuations day to day could drive you crazy!
That being said, if you think having a scale might be unhealthy for you, then don't get one, try to get back to going to the gym more often and eventually you'll feel comfortable weighing there again.
It's all about finding what works for you, your successful program will be as unique as you are.
Best to you