Recognizing that there are things that should be removed is an indication that you are ready for a change. Sorting, and evaluating the necessity of the item is essential. Material things can accumulate and cause clutter. If you are saying, "Oh. I remember this." And you haven't seen or used it in three months. Chances are, you don't need it. As for relationships and habits, if it is not an addition to your life it's definitely a subtraction. Why hold onto something that isn't adding to the enhancement of your life?
To acquire more positive or great things in life we must learn to discard the things that create clutter and/or chaos. When items are discarded..... It makes room for ideas, perspective, vision and clarity.
Make room for something new.....