Good Days and Off Days Are Both Normal

If you've noticed your accent seems stronger on tired days, after a long week, or right after speaking a lot of Portuguese, you're not imagining it — pronunciation skill naturally fluctuates with fatigue, stress, and how much your brain has recently been switching between languages. This is completely normal and doesn't mean you're backsliding. Your underlying progress is still there, even on days when it doesn't show up perfectly. Instead of judging yourself by your worst five minutes, try tracking a "best moment" each day: one sentence, one phone call, one word that came out exactly right. Write it down in a notes app, even just a few words. Over a month, you'll have a visible trail of real wins, which is far more useful than chasing a flawless average. Give yourself permission to have an off day tomorrow if you need one — consistency over weeks matters far more than perfection in any single conversation.