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

Americans pronounce magazine as ma-guh-ZEEN (/ˌmæɡəˈzin/). Stress falls on the third syllable — keep everything else short and quick. You'll hear it in sentences like "He writes book reviews for a local literary magazine".
Record yourself saying "magazine" and play it back. The mic stays on your device — nothing's uploaded.
3 syllables, 7 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
Same position as S, but add vocal cord vibration. Feel the buzz.

Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.

Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.

The textbook way isn't wrong — it's just not how anyone actually says it.
Stress falls on the third syllable, not the others. Stretch ZEEN — 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.