Relapsing is a natural part of the recovery process. Numerous things could cause a relapse, such as stress, spending time with people who use drugs, challenging emotions, and celebratory times or holidays.
Recovery is a healing journey, but it doesn't come without the occasional setback. Remember that change is a process that is not linear but rather a series of ups and downs.
Stress & Negative Emotions
Stress is one potential cause of relapse because people don't always know how to cope with the pressures of life, like looking for a job or ending a relationship. Since stress causes negative or challenging emotions, you may return to drug use to get temporary relief from those feelings.