I think lazy is having the motivation to do 'fun' things like sit and play Xbox all day, or whatever, but not do coursework, or cleaning etc.
The fact you get no fun out of anything suggests its probably suggests its more depression related as one of the key criteria is anhedonia - inability to experience pleasure. But I'm not a doctor so the best thing would be to see one.
What's leproxo generic name? Did you find it helped? If not, there are many other options, meds and therapies, like cbt.
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