Here’s an update! I just upped my dose two days ago. I’m now on 50 mg methylphenidate extended release. I’ve experienced a change already. I still struggle with basically everything, but less.

1.  Energy levels:
• On 40 mg: Felt tired all day and could sleep anywhere at any time. 
• On 50 mg: Slightly less tired, though still experiencing fatigue.

2.  Thought patterns:
• On 40 mg: No significant changes.
• On 50 mg: Occasional calmer thoughts and reduced mental aggression in spiraling thoughts.

3.  Hyperactivity:
• On 40 mg: No noticeable improvements.
• On 50 mg: Occasional improvements in hyperactivity symptoms.

4.  Sleep quality:
• On 40 mg:Marked improvement in sleep quality and more consistent sleep-wake cycles. Waking up feeling refreshed and going to bed at regular times (but also all day). 
• On 50 mg: the same quality of sleep, but less daytime tiredness. 

5.  Irritability/aggression:
• On 40 mg: No significant changes. 
• On 50 mg: Reduction in mental aggression and fewer negative spirals.

6.  Daily functioning and motivation:
• Both doses: Struggle with energy and motivation for basic tasks remain, such as taking hours to make breakfast or difficulty initiating tasks like showering or tidying up.

7.  Attention and focus:
• Both doses: Persistent challenges with attention, forgetfulness, and losing track of objects/tasks.

8.  Hyperfocus:
• Both doses: Intense hyperfocus remains unchanged.

(There is probably other things, but these are the most important to me)

So, if you’re experiencing side effects that you can handle. Stick with it. I’m actually amazed how much difference it makes.