[jawon]

You might be how surprised how low a dose you need for an effect. 5-10ug of Ritalin noticeably reduces the "noise floor" for me.

How do you take 5-10ug? Dissolve 10mg in a litre of something. Get a 1ml dosing syringe. It has 0.1ml markings.

You could start there and increase it until you find what works. Also, if you take very little you can have a break on weekends and not suffer too much while remaining sensitive to lower dosages.