Great job, you speak very well! There are only I few things I would change :)

Find a job (This sounds good, but maybe use: Looking for a job)

Hi! I'm learning English and since I have want to improve my speaking skills,  I'm looking for jobs that could help me to speak with other people. Maybe a part-time job in a school or a voluntary volunteer job. What do you think about that? Is it a good idea? (The last sentences are good, but you could also say: Do you think this is a good idea?)

Thanks!