1. Forbidden sights such as foreign (non-mahram) women
2. (Forbidden sights such as) good looking youth
3. Making disparaging look upon fellow muslims
4. Looking at anything disgusting and humiliating
Your desire for isolation (tajreed), while Allah has put you in the world to gain a living (fil-asbaab), is a hidden passion.
Imam Taj ad-Din ibn ‘Abd Karim ibn 'Ata'illah al-Maliki al-Iskandari in The Hikam