Feeling like I hit a dead end with vyvanse

I’m prescribed 70mg of Vyvanse and am so confused as to why I’m constantly tired, still feel mentally restless and scattered, and just not what I think my best self is. I tell my psychiatrist this and she says I’m expecting too much out of medication because I’m maxed out on Vyvanse and my other antidepressant. I’m also a past alcohol/drug addict with almost 2 years sober, and cocaine was my main addiction. With this information, my psychiatrist wants to stay safe with Vyvanse and not trying other stimulants. I just don’t understand what else I can do because I’ve tried making behavioral changes and nothing keeps me feeling capable of taking on the day.

The first 2-3 hours of my morning are the best. I wake up feeling ready and confident about the day. Then it all kind of goes downhill. Depression hits every single afternoon, I absolutely need to nap, sugar cravings, drink caffeine (which does nothing), and everything feels pointless.

The part that makes this so excruciating is that I want to do things. I’m an artist and I want so badly to paint, but I just can’t get the motivation to do it. Even if I force myself to, my body tells me to stop.

Does anyone relate?? My psychiatrist also wants me to get some genetic testing done because again I’m maxed out on doses but still feel like this. I’ve tried l-tyrosine, the pomodoro technique, but I feel like I hit a dead end.

Update: physiatrist is having me get genetic testing done to see if I metabolize certain meds quickly. Feeling optimistic!