Go see a doctor.

In addition to depression, sleepiness and malaise is also potentially a symptom of other deficiencies (vitamin d, serotonin). I recommend going to see a professional medical doctor to check if there isn't a physiological reason you are experiencing these symptoms.

Other attempts to fix things will not be successful if the underlying cause is not treated.

Go see a doctor.

In addition to depression, sleepiness and malaise are also potentially symptoms of other deficiencies, like vitamin D or serotonin. I recommend going to see a professional medical doctor to check if there isn't a physiological reason you are experiencing these symptoms.

Other attempts to fix things will not be successful if the underlying cause is not treated.