If you are feeling lousy and are tempted by drugs, don't start. You're in a very vulnerable position. If you are already taking drugs and feel this way, it' s time to stop. You use drugs to calm down. When alcohol or drugs are used to help you feel better or forget about things, they aren't really helping you.
Emotional dependence is a serious component of addiction.
If you keep missing deadlines and breaking promises at home and work, take time to consider if drugs are part of the cause. When your resolve to stay away from a substance falters, maybe you didn't have a free choice.