I check many times throughout the day, slightly addicted to blockfolio as I have a few altcoins and you can't really leave them for a month as they can change overnight, but I do think I check far too often perhaps I have developed an addiction to blockfolio just scrolling up and down.
Checking the price doesn't make anything to you. But coping with stress is important to take correct decissions when trading bitcoin or other altcoins. This is called self control when you cope with high stress.