While depression can range from mild to severe in its presentation, it can feel disruptive at any level. Therapy can be helpful to explore and process potential contributing factors whether those are internal or external, or both. Also, it is important to build coping strategies that can range from exercise to increasing social support to the incorporation of mindfulness.
Depression may often leave people feeling down with low energy, anxiety on the other hand can make people feel keyed up and on edge. Anxiety symptoms may include worry and difficulty distracting oneself from that worry, rumination, nervousness, and racing thoughts. Anxiety can focus on the future, with a desire to be in control of it. This typically comes from a place of fear of being uncomfortable with things that are uncertain, unexpected, or that could be potentially disruptive in one's life. Since we do not have control of the future, this can lead to a dynamic wherein anxiety may increase over time as a person continues to attempt to control something over which they ultimately do not have control.
Therapy can be helpful for anxiety as it can provide a broader context for a person to understand oneself and why anxiety may be present. It is also important to be able to recognize what contributes to a person's anxiety so triggers can be identified and better managed. Building coping skills for anxiety is also an important aspect of therapy because if one is feeling anxious it can be empowering to use strategies that work best for that individual.