Diabetes and depression go hand in hand, there's a strong link between them. High BGs will obviously make you fatigued and unmotivated. Then actually managing diabetes correctly is a lot to start with, especially newly diagnosed. I was put on SSRIs 3 years ago (physical illness, surgery, high HbA1c and post op recovery). My DSN did a depression checklist and I scored very high for Clinical Depression and low on Anxiety. After a few weeks I started to feel better mentally and over the years my HbA1c dropped from 112 mmol/mol to 58 now. I have had my SSRI dose cut down incrementally from 20mg to 5mg now. In 2 months time I will be reduced to zero as I no longer feel I need them. I would say setting small achievable goals is a good idea, mine were losing weight, more exercise and a better diet reducing carbohydrates to a minimum. Good luck and good health!