Heads up: While I am not christian I am confident in the universality and importance of virtue.
However there is virtue only in observation of negative experience and its causes. This means two things:
Know yourself, know others. Then you shall know how to be virtuous. From this comes two more important things: Never think you know yourself, never think you know others. So that you shall never know how to be virtuous. Only through caution and consistent doubt can you remain objective and not give yourself leeway towards unsavory behavior for your own convenience under the shield of confidence in your own goodness.
So:
Is your tendency towards obsession hurting you in a way you can't abide by? Is your tendency towards obsession hurting others in a way they can't abide by?
These are difficult and deep questions that will never truly be answered negatively, it is only important that you remember to ask and think and learn.
I find it easy to imagine reasons and scenarios where this tendency will hurt you and others. If you are ever to be placed in those situations, it will be the lack of self-control, i.e. lack of temperance that will be the direct cause.
The written virtues in this way work preventatively to maintain personal health and social good, they are like a digestible one-size-fits-all ethics system. It makes sense for something that originates in very old popular scripture to not be able to touch on the indivual-based complexity of actual ethics. They are a simplification, not virtue itself (only in name). They are more like politics. If you are never placed in circumstance where the lack of temperance in regards to your tendency towards obsession causes harm, then there can be no moral issue. Without moral issues, virtue cannot exist. Any possibility of this situation occuring disproves the universality of temperance as a virtue, meaning it isn't an actual virtue, it just carries the name of an old religious system also referred to as virtue. The religion it originates from was after all acting partially as a government, this is important for context I believe. Therefore the virtue you are lacking is not necessarily making you not live virtuously. But it is making you not follow an old social health system, if that is an issue for you, good luck with the reconciliation. Real virtue would in that moment identify your attachment to that old system to be the problem instead.