In the past my sister lied to me and I was really frustrated.
After that, she promised me she would do a good job.
But sometimes I’m stressed out; it keeps me thinking.
I continually doubt if she is doing a good job and nag her.
I can't help it. I think I’m born that way.

Could you please correct me?
Thank you so much.

Question

In the past my sister lied to me and I was really frustrated.
After that, she promised me she would do a good job.
But sometimes I’m stressed out; it keeps me thinking.
I continually doubt if she is doing a good job and nag her.
I can't help it. I think I’m born that way.

Could you please correct me?
Thank you so much.

Answer

"After that, she promised me she would do a good job."

I'd say: ...she promised me she wouldn't do that again.

"But sometines I'm stressed out; it keeps me thinking."

I'd say: But, sometimes, I feel stressed.

"I continually doubt if she's doing a good job and nag her."

I think you meant: I continually doubt if she's doing a good job, so I nag her.

"I think I'm born that way".

I'd say: I think born this way.
_
I hope it helped, Mari

Answer

I continually doubt if she is doing a good job and still nag her.