Hello
@Adelesjakevan Welcome to the forum
It sounds like on top of your diabetes that you have alot to deal with, being a bread winner, father and carer for your mum is alot to deal with. Depression as you are probably aware is commonly linked to diabetes too. How are your blood glucose levels in general ? I went through a period of depression which I struggled with, and found that it was my fluctuating levels which contributed towards this, as well as the added pressure of being a mum and working full time.
You mention also being a carer for your mum - is there any way you can get support to help her, so contact
https://www.alzheimers.org.uk/ or pop into a local charity shop to see what local support is available, getting some support will help you greatly.
I appreciate your life is busy, but is there any way you can take time out to do a hobby or something you enjoy, even if it's going for a run/walk 2-3 times a week, doing something alone which will give you a chance to think and be yourself for a short while.
You mention you have already had support from the NHS, who are you in contact with in managing your diabetes ? If you are seeing a consultant then try and get them to review your care, if you are using diabetes to self harm then they need to be aware fully of the situation you are in. I know it must be hard for you but start to make a nuisance of yourself - they need to realise with so many dependent on you, that you are a big priority. Try also to see that things can improve, that it can only get better and have hope.