Meine Routine am Morgen macht mich ruhig.

to make

Breakdown of Meine Routine am Morgen macht mich ruhig.

• der Morgen: the morning
• mein: my
• ruhig: calm

Questions & Answers about Meine Routine am Morgen macht mich ruhig.

Why is it Meine and not Mein?

Because Routine is grammatically feminine in German: die Routine.

• Feminine, nominative, singular → the correct possessive is meine.
• Mein is used for masculine or neuter singular (e.g. mein Hund, mein Auto).

So:

• Meine Routine = my routine (subject of the sentence)
• Mein Morgen = my morning (because Morgen is masculine: der Morgen)

What exactly does am Morgen mean, and why not just Morgen?

Am Morgen is an dem Morgen contracted. Literally: “on the morning”, but idiomatically: “in the morning”.

• an → preposition
• dem → dative form of der (masculine definite article)
• an + dem = am

You can see the time meaning like this:

• am Morgen = in the morning (often fairly concrete: at that time of day)
• Morgen alone is usually tomorrow, not “morning”.
  (Morning as a noun is der Morgen with an article: am Morgen, jeden Morgen, etc.)

What is the difference between am Morgen and ?