my medication is keeping me awake but not energized

Hi there! this is my first post ever so i’m not really familiar with posting on here but i have a question that seems like it could only be answered here! i take 20 mg of Ritalin extended release, twice a day (6:30am & 12pm). after trying different medications, this has been the most effective when it comes to staying awake. however, while it keeps me awake, it feels like most of the time it’s only my body that is awake and my brain is not. i’m awake physically but i still feel exhausted and i can’t remember the last time i felt energetic. also it has caused me to not be able to sleep in the night either and my neurologist has diagnosed me with insomnia due to this. i was told to take melatonin to help me sleep, which helps greatly, but i just wish i could feel more energized while i am going about my day. has this ever happened to anyone else?