I have experienced/do experience more or less the same problem you describe. I find forcing my self to go for a brisk, short (4-6k) walk in the morning after I

I have experienced/do experience more or less the same problem you describe. I find forcing my self to go for a brisk, short (4-6k) walk in the morning after I wake up and several times throughout the day when I start getting tired helps. A more recent thing I've been trying is taking (ar)modafinil 50mg 2x a day (7am and 11am). It has been working wonders for me for the past month, taken 3x a week (every other day [mon, wed, fri]).