Before I begin, I would really appreciate suggesstions in terms of writing style.

BetweenFrom Wednesday andto Thursday, Germany experienced the influence of an orcan called Ylenia.

Citizen were asked to stay inat home, and schools were closed statewide in NRW, East Germany.

Compared to the past, the states can now act themselves andUnlike before, the states now have the authority to close schools themselves.

Alt: "Compared to before"

However, after the situation calmed down, I traveled to school to take an exam.

Alt: "went" instead of "traveled"

On my way, I saw trees who felt down - onethat had fallen down. One was on the motor way, which was then removed by officials.

Unfortunately, themy train i was going with made longer stops, resulting in a long waywhich increased my commute time home going home.

Before I beginstart, I would really appreciate suggesstions in terms of writing style.

start is another way of saying it, but begin is still correct :)

BetweeOn Wednesday and Thursday, Germany experienced the influence of an orcan called Ylenia.

between is correct but since it's only 2 days "on" would be a better way to say it

Citizens were asked to stay indoors and schools were closed statewide in NRW, East Germany.

Citizens as it is a group of people, "indoors" makes it more specific to mean inside

Compared to the past, the states can now act by themselves and close schools.

adding "by" is a more natural way of saying it

On my way, I saw trees who felt downfallen trees - one on the motor way which was removed by officials.

"fallen" can be used as an adjective instead, motorway is normally one word

Unfortunately, the train iI was going withon made longer stops, resulting in a longer way home.

"I" is capitalised when talking about oneself, we use "on" when talking about travelling by train, you don't have to add "er" to "long" but it can be added for emphasis