Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.

Americans pronounce confirm as kuhn-FURM (/kənˈfɜrm/). Stress falls on the second syllable — keep everything else short and quick. You'll hear it in sentences like "Kindly confirm your attendance by the end of this week" or "I will confirm with my wife and let you know by tonight" — more examples below.
Record yourself saying "confirm" and play it back. The mic stays on your device — nothing's uploaded.
2 syllables, 6 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.

Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.

Lift your bottom lip to touch the very bottom of your top front teeth. Blow air through this contact point without voicing.

Flare your lips and push them away from the face. Lift the middle of your tongue toward the roof of the mouth.

Press your lips together. Air flows through your nose. Vocal cords vibrate.

Click any sentence to see the full breakdown — every link, every reduction, every flap-T.
The textbook way isn't wrong — it's just not how anyone actually says it.
Stress falls on the second syllable, not the others. Stretch FURM — keep everything else short and quick.
Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
Americans use a relaxed retroflex R — the tongue curls back rather than rolling. The R is one continuous sound with the vowel before it, not two separate sounds.