Background: This study investigated the psychological hardness of individuals with drug addiction residing at the Al-Sadiq Al-Tayeb Association in Jerusalem, focusing on factors such as marital status, financial income level, duration of drug use, and ways to obtain the drug. Methods: Utilizing a descriptive approach, 92 participants from diverse cultural and social backgrounds were included. The Drug Hardness Scale (DRS-15-R). Results: The findings showed that all dimensions of psychological hardness—commitment, control, challenge, and the overall total—fell within the medium range. Significant differences in psychological hardness were noted based on marital status and financial income level, with unmarried individuals and those with higher incomes demonstrating greater psychological hardness. However, the duration of drug use had no significant impact on the participants' psychological hardness. Notably, easy access to drugs was associated with higher levels of psychological hardness across all variables. Conclusions: This study showed that singles and high-income people have greater psychological toughness, with a slight effect on the duration of drug use. Easy access to drugs increases psychological toughness, indicating the importance of social and economic factors in determining psychological toughness in people with drug addiction.