Nothing wrong with checking your portofolio often - perhaps even as often as every year. Looking at day-to-day variations is like trying to admire your wife through a microscope - full of colour and interest, but telling you nothing of the larger picture. For a new investor, checking too often is normal, but dangerous. You'll get nervous and worried when you don't need to be, or excessively happy with your success. Read Kahneman's "Thinking, fast and slow", particularly the story about investment manager performance, and remember that over the short term, chance dominates returns - so perhaps I should had said "kaleidoscope" instead of microscope!
I suggest a training/weaning program; begin by setting your calender to give you a daily "check shares" reminder; after a week of daily checks, cut back to once every two or three days. In your third week, set your calender to allow you a *single* peek. Keep doubling the periods like this until you reach the vicinity of a year. Checking every few months for dividends that need to be re-invested is just good housekeeping and perfectly safe.