Loneliness is the feeling of sadness due to being alone, and it can be incredibly complex to find the root of it. This emotion might lead to intensified feelings of depression or anxiety, and it is important to dissect where this feeling might be coming from and how to treat it. In an article provided by Psychology Today, Marty Nemko Ph.D. discusses important questions to ask yourself if you are currently struggling with feeling lonely. 

Is loneliness really the issue? It is possible for an individual to misplace the need for some change with the need for company. Make sure you aren’t actually longing for new knowledge or new challenges in your daily life. If you are feeling stagnant in your life, this might lead you to start thinking that you are feeling lonely. If you think this might be the case for you, try picking up a new hobby, or gathering new knowledge. Examine your career path, and if you are truly content with it. Do not be afraid to make changes for yourself.

What are you actually longing for? Loneliness is complex. Are you missing the company of your current friends? Do you feel like you need to go out and make more friends? Are you looking for a romantic partner, or simply someone to commiserate with? Deciding exactly what you need can help you avoid self-destructive behaviors by attempting to fill the void with anyone or anything.

Self-isolation is not beneficial, but it is normal for some individuals who might be going through a low point with one's mental health. Be sure to check in with yourself regularly. If your depression symptoms are worsening, it is possible that you could be more distant than normal. This can very easily lead to heightened feelings of loneliness and anxiety. Explain your situation to your loved ones, and do not feel guilty for your feelings. 

If you are feeling lonely even when surrounded by people, this could be another symptom of depression. This is something that is important to address with a mental health professional, and with your friends and family. Remember that this is common for those who struggle with depression, and it is nothing to be embarrassed of. 

Even if you are lonely, remember that you are not alone. There are many people who care about you and will be willing to listen. Try your best to not isolate yourself. Human interaction is crucial during tough times, and being alone will not be beneficial. Take everything one day at a time, and remember that it will all work out eventually.