I weigh myself weekly, no more. At times in my life when I let months go by without weighing, I found that the weight gradually crept up until I had to work really hard to get back to my normal weight. I would rather catch it when it is just a pound or two rather than ten pounds. However, I don't obsess over the scale, and it doesn't ruin my day regardless. You might need to give it up for your own reasons.