I need some corrections...

Thank you in advance
You have seen an advertisement for a weekend job as a local tour guide showing visitors around your city.
a)give your reasons for wanting the job
b)explain why you think you can do the job
c)describe any relevant experience you have
Dear Sir or Madam,
I am writing to apply for
the job of
the tour guide.(
the job is specific) I have seen
the advertisement
about a weekend job in a daily newspaper.
I would like to apply for the job.because, I have good communication skills; I am reliable and self-confident.
Most importantl, I have been living in this city for 18 years and I know lots of interesting places that
are worth visited. In addition, I am very interested in
the history of my country, so I can provide a lot of interesting and significant information about my city’s
history.
I have already practised being a tour guide as last year
tourguiding my relatives that visited my family
last summer . I
believe I have succeeded in showing them all the
sightseens and I
think they were
quite satisfied.
I hope you will consider me a
candidate for this job.
Yours sincerely,
Ellen.