Talk with your doctor about getting a few lower dose pills either alongside your normal dose or as part of you normal dose. Like 10mg og 20mg and 60mg. Then you can take a little boost dose when you come home after a day where you forgot or if you have days where you need a little extra. Heck even take less on good days to if you want.
I have 10 and 20 and actually flex a bit with how much I take. I don't need much so I'm on relatively low dose. I'm also relatively new on methylphenidate so still learning my dose but for me I found it extremely useful to be able to flex a bit. If I had a bad night of sleep or went to bed too late and I'm tired I found that taking less is better or else I get too emotional and irritaded.
On days where I know I have a lot of work to focus on in the evening I take 20mg extra in the afternoon after lunch. They are the long lasting ones so shouldn't take them too late my doc said but I've taken 10mg at 16 o'clock some days because I forgot to take earlier and been suprise how well it works. For me I still sleep super well and might even have better willpower to actually go to bed at a proper time.
It's maybe worth discussing with your doc.