I'm not sure if you're looking for a correction to what you've written, but given that it is your goal to improve your English, it would help you.
You have two choices when talking about your field:
I work in I.T.
I work in the I.T. field.
You'd want to say 'a' Project Manager since you're talking about the field.
The comma should be a period since your sentence should end there.
When you speak, you can say 'wanna' but when you write, you should get into the habit of writing 'want to', 'would like to', etc.
Hope this helps!
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