Do you guys notice your sizing changing depending on conviction?

I feel like even when I tell myself I’m following fixed sizing, in practice I still end up going slightly bigger on trades I “believe in” more, not always consciously either. Curious if others see the same thing?

Do you have explicit rules for this or do you try to keep everything strictly fixed? And if you do have rules, do you actually stick to them in this particular case (high conviction)?

Also for people who journal trades: do you distinguish between “conviction trades” and the rest? And if so what does your data say?