Sounds exactly the same as what I wrote in 8 and a half pages. It was a gift question.err. I think you should've addressed all 6 objectives to get full marks for the exam.
The way I structured mine was I talked about macro and micro policies EG:
Starts with fiscal policy - link it to some of the goals say its successful, then how it dampens other ones
Monetary - same thing
Micro policy - same thing
Conclusion - achieve some goals successfully, conflicting objectives etc etc
But I forgot to link them to enviro and external stability. However I think enviro needed a separate paragraph of its own (unless you slot it under fiscal or micro) when talking about like market based, putting a tax on externalities, complete ban etc. I was gonna slot it in at the end but no time