It could be a compound effect. All of those aspects could be contributing and having a multiplier effect on each other.
I remember feeling very sluggish when I was taking that medication, and I was taking it alongside Wellbutrin as well which should have off-set any drowsiness.
Some of the problems you describe seem like they would likely negatively impact one's self-esteem/self-image, this would give you additional burdens to deal with, which would make the stress worse, as well as make it easier to divest emotionally. Feeling overloaded, worthless and apathetic while knowing sleep is a potential escape would make it really easy to keep relying on sleeping the time away as a coping/escape mechanism.
Do you have people to vent to when you're stressed or when mental health issues are more difficult to deal with? Would you like to vent about the various stresses? Even if it won't directly help, sometimes just articulating the problem helps with placing it (or them) in perspective. It's good you've got support to remind you when you need to take care of yourself, break down of those routines often feeds into things getting worse, at least for me.
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