Organization may be a sticking point between the two of you. While you like to establish structure in schedules, plans, and systems, your counterpart takes a more relaxed approach. You may find that disagreements arise over these fundamental differences.
If you share a physical space, you may disagree over how clean, tidy, and organized it needs to be. You will tend to feel more motivated to keep things in order, while your counterpart will have less of an innate need for organization.
Often, the more organized person in a relationship like yours ends up taking on more responsibilities, simply because they're paying more attention to what needs to be done. This can lead to resentment and imbalance in the relationship. You may feel as if you are the "adult" in the relationship, while your counterpart may feel nagged and harassed.
The best way to approach conflicts in this area is to frame your own desire for organization as just that—something you desire. It is generally unproductive to try to convince your partner that your structured, orderly way of doing things is the "correct" way, but if you approach it as simply stating your own preference, they may be more open to trying to accommodate you.
Scheduling can also be an area of conflict for the two of you, as they like to leave things open-ended, while you prefer things planned and settled. Again, compromise is the key. The first step is to acknowledge that you have different approaches, and that each style has its benefits. Then, try to make sure your time together includes both scheduled events and free time for spontaneity, so you each get a chance to be at your best.