I studied hotel management, but I got a job in another field. I studied hotel management but I got a job in another field.

I studied hotel management, but I got a job in another field. I studied hotel management, but I got a job in another field.

Or a different field

After that I had a short-term job, but I didn’t work for long. After that I had a short-term job but I didn’t work for long.

After that I had a short-term job, but I didn’t work there for long. After that I had a short-term job, but I didn’t work there for long.

After that, I had a short-term job, but I didn’t work for long. After that, I had a short-term job, but I didn’t work for long.

I’ve been working from home. I’ve been working from home.

I’m a stay-at-home mom. I’m a stay-at-home mom.

"because I'm a stay-at-home mom now."

I studied.. I studied..

Maybe change the title to reflect the whole post. Something like, "Where I'm at now".

No, no. No, no.

Why is this here? Everything else seems to be correct. But the "No, no" sounds like you're responding to someone's question.

No, no. No, no.

Why the "no, no"?

Then I got married and quit my job. Then I got married and quit my job.

You can connect this to the previous sentence like this: "and then got married and quit my job." Your sentence above is perfect, though.

Then, I got married and quit my job. Then, I got married and quit my job.