First want to say i am nobody im 19 years old trying to get closer to hashem and live a meaningful jewish life.
Obviously everyone here believes in hashem. But you have to believe and know 100% hashem is real there cant be a doubt in your mind. Avigdor miller on evolution, or similar content to that helped me. When hashem becomes real davening becomes genuine you become more aware life is more exciting which imo makes fighting the yetzer hora easier. So when you are on these "streaks" focus on making hashem proud say it out loud. when u walk in the street and u quickly look away say to yourself "forever" because when you make hashem 100% real every action you do matters and you know 100% in your head that your action will be saved up there forever. That has helped me tremendous, hope this helps.