Hello and welcome to cleverdodo
HSC AND SC exams are available as private candidates which you must apply for at the Mauritius Examination syndicate,
it is almost the same, i did private last year too,
The disadvantage is you won't have the second subsidiary subject
A normal school student result consists of 5 subject
3 mains and 2 subs
example : maths chemistry physics
Subsidiary : General paper and french for example
So basically subsidiary subjects doesn't matter in university
but since while as a private candidate, you benefit from general paper, it is a clear proof that you know how to speak english
YOu may apply for the november 2015 Cambridge exams for hsc if you wish to, but you need to be ready for it, i did a class twice and it didn't matter for me.
If you are trying to go for hsc as private candidate, you will need to take tuitions in order to be ready. it will depend upon you if you wish to continue being at school or not. But personally, if you think you can go through school and being a step by step learner, maybe your future might be more bright
School times are the best of moments and you benefit a lot to be someone in life, but trust me if you feel it's better you do your hsc, then surely you will be ahead in the job market, but it's only if you are prepared.
You can stay in school till the age of 21 btw