Talk to your parents and find out how much they can afford to pay for your university education.
Start searching for courses/ universities… now!
Register for any extra test you might have to take e.g. SAT/ACT for the USA.
Make a spreadsheet of courses you are interested in. You should include tuition costs and housing costs as well as the academic entry requirements and application deadlines.
Make an appointment to see your counsellor.
Never underestimate how much time this will take – start early… very early!