請幫忙修改英文 文法 和用過去式!~?

I was very lucky. The new company prepared a contract for me.

I believe that I would be an asset to this company, because I have the skills this new company is looking for. With good communication skills as well as strong leadership skills, I would be able to work autonomously. I think my working experience had really help in my interview.

The new company requires employees to work around the clock.
I did not agree with this arrangement, but may be my company still needs much improvement.
But with my working experience, I believe that I can work faster to adapt to the new job.

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Part 2 :
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After filling out the application form, the interviewers asked me a lot of questions for this interview.
Why would it be challenging?
How would you describe your working experience there and why would you decide to leave?
What is your salary expectation?
I read through all the job details again before the interview, because the questions at the interview would relate to them. So, I would be able to answer all the questions clearly and directly, without having to vex my mind with them.

一些問題 :
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(1) 巳修改英文 文法

雖然是 diary , 這文章不會全部用「過去式」！
eg. " I believe ....." , " I think ...." 等字眼就需要用「現在式」
eg. " I have the skills this new company is looking for " -- 用 "have", 因 你的 "skills" 永遠存在,無分時間

(2) “my worked left much to be desired.” ？ --可否用「中文」書寫這一句 ?

Grammar should be preferred in present tense:-
As an introduction, my working experience can really help me for this interview. I am very lucky to accept the prepared contract trully with the new company.
I believe that I would be an asset to the company because I have had the skills and experience that the new company are looking for.
I want to let you know that I am able to work autonomously, be able to do things and make decisions without help from anyone else. and have good communication skills as well as a strong leadership.
The new company requires employees to work around the clock, which I am afraid I do not agree with that arrangement.May be my work left much to be desired.
But I believe that my past working experience will enable me working faster and adapting to change anything in order to make it suitable for the new situation in your new company.

After I fill out the application form, the interviewers asked me a lots of questions for this interviewed.
why challenging ? ,
how would you describe your work experienced there and why are you left?
What are your salary expectations?
I read through all the job details again before the interview,because the questions at interview will relate to them.
SO,i can answer all the questions clearly and directly,
becauseI didn't vex my mind with the questions .