Cover letter's tone and style

What word fixes better in a more formal way? I worked on a bunch of projects

• tons

• a lot

• lots

• several

Which of these sentences uses contractions and should be revised?

• I am excited about the opportunity to work with your team.

• I’ve applied my skills to various successful projects.

• I would be honored to contribute to your company’s success.

Which of the following is the most appropriate for a cover letter?

• I am the best candidate for this job, and you won’t find anyone better than me.

• 
  I believe my skills and experience align well with the requirements for this position, and I am eager to contribute to your team.

What is the tone of this sentence?

I know I can handle this job better than anyone else.

• Direct and aggressive

• Professional and Confident

• Humble and Self-Aware

Which of the following is the most appropriate for a cover letter?

• I know that...

• 
  I can tell that...

• I am confident that ...

Now let’s soften 'handle this job' to make it less about personal ability and more about contribution. What is the best option?

• I can handle any task at your company

• My skills will allow me to make meaningful contributions

• I am eager to perform all responsibilities

The phrase 'better than anyone else' sounds over-confident. How can we change it to express a willingness to grow?

• I will be better as I continue to work here

• I can easily outperform others on the team

• I am eager to learn and grow within your organization

Now that we’ve improved the tone and wording, which of the following is the best complete version of the sentence?

• I am confident that my skills will allow me to make meaningful contributions, and I am eager to learn and grow within your organization.

• I am confident I can handle this job better than anyone, but I’ll still learn on the job.

• I know I can handle this job and outperform others, and I will learn fast too.

How can we rephrase 'I am the best at what I do' to sound more collaborative?

• I strive to excel and work well with others

• I am confident in my abilities and can lead the team

• I have a strong track record of success

Which phrase is more suitable for a formal email instead of 'I just wanted to say'?

• I would like to express

• I just thought I would mention

• I wanted to let you know