A person will be set back in accordance with the magnitude of the fault. Therefore, only you can be the judge of your own progress. Do not feel discouraged, since it takes time to retrain the body and mind not to fornicate. Many people have begun these studies with nocturnal pollutions and have learned to overcome them. Rather than experiencing dismay, take heart and be diligent in your practice.
As for having sex more than once a day, you have your free will. You do not need to succumb to any action that goes against your will. Communicate with your spouse about your concerns. If your partner does not respect your will, what can you do? You have to follow your heart, even if it produces suffering. You can always make your point in a respectful way. Speak with love, understanding and patience. When you follow God within your heart, you cannot go astray.
Joyful in hope, suffering in tribulation, be thou constant in thy prayer.
Benedictis, qui venit in nomine Domini. Osanna in excelsis.
"Blessed is he who comes in the name of the Lord. Hosanna in the highest!"