Do you have a forum to discuss this in?
I.e:
weekly 1-to-1's,
monthly/quarterly reviews
(annual reviews naturally being too late to bring this up)
What's your relationship like with your manager?
You could test the waters if you socialise with your manager outside of work (maybe even just work drinks during a week?) and bring it up, and ask if it's something you could discuss.
Alternatively you could ask your manager for a meeting and tell him you've been struggling with this task and you need support on how to make it easier.
Note, it's important that when you're bringing a problem to management to have some potential solutions, including ones that you favour most
i.e.
Automate that thing
Spread the load
Farm it off to another team or get a tool to make the task easier.
What's your relationship like with your manager? You could test the waters if you socialise with your manager outside of work (maybe even just work drinks during a week?) and bring it up, and ask if it's something you could discuss.
Alternatively you could ask your manager for a meeting and tell him you've been struggling with this task and you need support on how to make it easier. Note, it's important that when you're bringing a problem to management to have some potential solutions, including ones that you favour most i.e. Automate that thing Spread the load Farm it off to another team or get a tool to make the task easier.