Letter of motivation

Hi,
My name is Mathias I am new here. This is my letter of motivation.
My written English is not so good. Please can someone chekck my Text.
It would be verry helpful.

Thank You

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Dear Sir or Madam,

With this letter I would like to explain my motivation for an sales position in your company.
I successfully terminated the economy school in the Year 1999. After this I studied at a school "informatic assistant" and graduated in 2002. After the study I have a professional education as a „informatic businessman" at the company Icos Academy in Year 2004.
Subsequently, I was working as a Sales, Personal leader, Marketing Manager in our own Shop. In the year 2006 I took over an own insuranceoffice and parallel I finished with the IHK the „ By the state approved Insurance expert" at 2007. Since 2007 I work also in area regenerative energy (photovoltaics and solar heat). I have my own sales area. In that I am a sales manager. And this prepares very much joy for me.

Was mache ich?
I have been working for a German insurance company since 2006. Also I started to work for a Solar Company in 2007. Because I have over 10 Years sales and customer experience, I got from the company a special sales area. I enjoy to working with private cusomers and Business Partners. My current position as sales manager for photovoltaic's and solar heats has provided me with the opportunity to work in a high-pressure, team environment, where it is essential to be able to work closely with my colleagues. Also it it prepares very much fun to do something healthy for the environment

Warum will ich ins Ausland?
I want to move to the USA because I love the country and the people there. They are so friendly, helpful and honestly. I felt like I am at home. By the new start in the USA I see new opment potentialities and personal challenges. These challenges I would be master

Was sind meine Zukunftpläne?
I would like to develop a secured and good future for me in the USA.
By a strong business partner such as Solyndra it is to be realised me possible my personal goals. To reach my goal I bring higher-than-average engagement. Also I bring unlimited motivation with me.

Warum Ich?
I am highly motivated and have much fun at the work. When I work for your company I will finish every business with full activity and accuracy. I see new tasks as a welcome challenge, which I look forward to. Therefore I think I am a postive enrichment for your whole team.