No, it does not matter, you can plant positive beliefs without weeding out negative beliefs. Weeding out the negatives just helps to prepare the soil.
Sometimes my mind got into a weeding out the negative mode and for a couple sessions all I could think of was negatives to eliminate. Another time I would get stuck in planting positives. Sometimes a mode is nice because you get a chance to get to the real essence of what you are trying to achieve.
