I won't write the essay for you but I will give you 5 things to talk about in your essay.
A good mother should
1. Teach Respect and Discipline
2. Teach Responsibility (picking up after yourself, dishes, earning stuff)
3. Be soft but firm (be a parent NOT a friend)
4. Give freedom but to much (set a curfew, make sure you know were they are, who they're with and what they are doing.)
5. Give good education and awnser ALL questions
I'm 15 and I have a great mom but have still be around horrible ones. This is just what I've learnt over the years and what I've heard my mom give other moms advice. :)
I hope I helped :)