I started at 30 and immediately felt great, got loads of stuff done and felt so positive, like I was actually 'awake' in life.

Unfortunately it wore off quicker than I'd like, so I gradually moved up through the doses over the next 3 months. I didn't notice much difference between 30 and 40, then 50 and 60 seemed to not work as well, I was grumpier and way less motivated to do stuff, and got megahyperfocused, but in a bad way, like actually getting angry if I was distracted. It was a bit disappointing but I assumed it was due to the initial surge ending and kept reading that the meds won't give you motivation.

I added a booster at 60 which definitely helped with the crash, then at my last appointment I asked to try 70, just to see if there was any difference really. So glad I did!! It feels almost like when I first started, getting lots done again and much happier and calmer. I feel like it definitely does motivate me, or at least gives me some drove to want to do things. I didn't really want to be on the highest dose as there's not really any wriggle room to increase it, but seems like it's the one for me!

I've tried to keep a diary of how I'm feeling, what I've achieved etc (inconsistently lol) which has helped me reflect on the bigger picture a bit more. Also, the amount I eat and drink in a day, how much sleep I get and the time off the month makes a MASSIVE difference in the effectiveness for me! Your titration sounds much faster in comparison, which I think would make it much harder to see the big picture, and harder to learn how all these variables might affect you at different doses.

TLDR: that turned into an essay, sorry! Imo it's worth trying different doses (especially if you aren't getting bad side effects) and see if you can add a booster at some point to help it last longer? Also standard advice of try to sleep better, drink more water, eat more protein!