As someone with type 1, I have not reduced my carbs.
I focus on the correct insulin dose and timing.
Dose size comes from basal testing and carb counting (as
@Knikki described). Timing requires more effort and trial and error. For example, something with high carbs and fat such as pizza takes longer to digest so requires multiple injections whereas a less carbs meal can usual be managed with a single injection.
You didn’t mention weight loss so I would focus on frequent testing and getting your insulin dose correct.
It may help getting a friend or partner on board. My boyfriend would carb count with me and we would compare results (my count was usually higher than his). It became a little bit of a competition... but in a fun way.
There is a lot of talk on this forum of low carb dieting. Most of this advice is focused on people with type 2. However, I know some people with type 1 find it has helped them as it requires lower insulin doses so less chance of making mistakes.
If this suits you, go for it. But don’t get dragged into believing “diabetes” is the same for everyone.