jrae…I feel this way too. A start for me has been trying to post my 'real' feelings here on PC instead of hiding them or sugar-coating them to suit other people. It's been almost a lifetime of depression and other mental and physical issues and I know the fatigue only too well. Losing the will to fight.
However, you have taken a big step by posting here. That is an achievement in itself even though I know how draining it is.
So, I think it's a really good start that you posted and shared here.
I'm not sure if you are seeing a counsellor/therapist, but maybe that is a possibility?
Please know you are not alone…if only we could take our own advice (I often think)