Navigating Haram Thoughts: Seeking Guidance on Impurity in the Mind

Assalamu Alaikum, I've been struggling with thoughts and urges that distract me from my studies, even though I avoid haram media. Sometimes, I find myself reading inappropriate content and dealing with urges, as it feels like the only relief available right now. To focus better, I'm considering scheduling any relief for the evening, hoping it keeps my mind clear during study hours. I'm uncertain if this crosses into haram territory or falls in a grey area. If anyone has advice or helpful resources, like Islamic talks or articles, I'd really appreciate it. Jazakum Allahu Khairan.