Once you hit that delete the only way back is to keep playing. So if you do delete, be sure to sell or trash your game so you don't revert into starting it over. As a substitute, start playing a similar game that does not have quite the time requirement, like call of duty or halo. Slowly because they are similar but more dull than destiny, I'd suspect the "need to play" feeling will wear off. Pick up a book or start a new tv series or make a commitment to exercise and get more sleep in your free time.