A personal problem is one that only relates to ones self
I am sorry, I don't completely understand, could you give me more infromation so that I can help.
The subordinate clause is "When the delivery man arrives" because 1. it is introduced by "when" and 2. we can ask question to the main clause about this one.
your essay should be fairely easy.. first off ,
1. Decide on your topic.
2. Prepare an outline or diagram of your ideas.
3. Write your thesis statement.
4. Write the body. Write the main points. Write the subpoints. ...
5. Write the introduction.
6. Write the conclusion.
7. Add the finishing touches. :)) good luck bud !