I really liked taking pictures, and I took more than 1,000 pictures a day in as a college student. I really liked taking pictures, and I took more than 1,000 pictures a day in as a college student.

I really liked taking pictures, and I took more than 1,000 pictures a day inas a college student. I really liked taking pictures, and I took more than 1,000 pictures a day as a college student.

You could say "in college" or "as a college student"

When I was a college student, I really liked taking pictures, and. I took more than 1,000 pictures a day in a college student. When I was a college student, I really liked taking pictures. I took more than 1,000 pictures a day.

This sounds more natural in the US.

I really used to liked taking pictures, and I took. When I was a college student, I would take more than 1,000 pictures a day in a college student. I really used to like taking pictures. When I was a college student, I would take more than 1,000 pictures a day.

I separated this sentence into two sentences. "Liked" and "used to like" are interchangeable here, this is just a stylistic choice. I also changed "I took" to "I would take", because the use of "would" implies a habitual action (that you do something again and again).

I used to really liked taking pictures, and I took more than 1,000 pictures a day inas a college student. I used to really like taking pictures, and I took more than 1,000 pictures a day as a college student.

I used to really liked taking pictures, and I took. I used to take more than a 1,000 pictures a day inas a college student. I used to really like taking pictures. I used to take more than a 1,000 pictures a day as a college student.

I used to travel for taking pictures, not only to the oceans but also to the mountains. I used to travel for taking pictures, not only to the ocean but also to the mountains.

I used to travel forto takinge pictures, not only oceans but alsovisiting both oceans and mountains. I used to travel to take pictures, visiting both oceans and mountains.

This sounds more natural

I used to travel for taking pictures,ake pictures while traveling. I photographed not only oceans but also mountains. I used to take pictures while traveling. I photographed not only oceans but also mountains.

Alternative: I used to take pictures while traveling. I photographed not only oceans but mountains, too.

I used to travel forto takinge pictures, not only oceans but also of the ocean and the mountains. I used to travel to take pictures of the ocean and the mountains.

I used to travel forto takinge pictures, of not only oceans but also mountains. I used to travel to take pictures of not only oceans but also mountains.

I used to travel forto takinge pictures, not only oceans but also. I took pictures of oceans and mountains. I used to travel to take pictures. I took pictures of oceans and mountains.

But my company doesn't allow to brbringing a cameras into the buildings due to security. But my company doesn't allow bringing cameras into the buildings due to security.

But my company doesn't allow me to bring a camera in the buildings due to security. But my company doesn't allow me to bring a camera in the buildings due to security.

But mMy company doesn't allow to bring a cameras in the buildings due to security. My company doesn't allow cameras in the buildings due to security.

This sounds more natural in the US.

ButHowever, my company doesn't allow to bring a cameras in the buildings due to security reasons. However, my company doesn't allow cameras in the buildings due to security reasons.

You could also say "doesn't allow me to bring cameras" as well.

But my company doesn't allow us to bring any cameras into the buildings due to security. But my company doesn't allow us to bring any cameras into the building due to security.

Your sentence is okay, but this sounds more natural. :)

But mythe company I work at doesn't allow to bring a cameras in the buildings due to security. But the company I work at doesn't allow cameras in the buildings due to security.

So I stopped bringing the camera, and I was upset for a month. So I stopped bringing the camera and I was upset for a month.

We don't need a comma in a sentence this short.

So I stopped bringing ithe camera, and I was upset for a month. So I stopped bringing it, and I was upset for a month.

You can use the pronoun "it" here, since the camera topic was mentioned in the previous sentence.

So I stopped bringing themy camera, and I was upset for a month. So I stopped bringing my camera, and I was upset for a month.

Your sentence is okay, but this sounds more natural. :)

So I stopped bringtaking themy camera with me, and I was upset for a month. So I stopped taking my camera with me, and I was upset for a month.

Your sentence was correct, but this sounds a bit more natural.

But then, I found other hobbies such as reading books instead. But then, I found other hobbies such as reading books.

Don't need to say "instead" in this sentence. It's not wrong, but it is not required.

Nowadays, I bring the camera only when I go to abroad. Nowadays, I bring the camera only when I go abroad.

Nowadays, I bring the camera only when I go to abroad. Nowadays, I bring the camera only when I go abroad.

"To go abroad" is a set phrase.

Nowadays, I bring the camera only when I go to abroad. Nowadays, I bring the camera only when I go abroad.

If you are talking about a specific place, you can use "go to" (for example, "go to Jeju-do"). If you are talking about a non-specific place, just use "go" (for example, "go abroad").

Nowadays, I only bring themy camera only when I go to abroad. Nowadays, I only bring my camera when I go abroad.

Nowadays, I bring the cameratake my camera with me only when I go to abroad. Nowadays, I take my camera with me only when I go to abroad.