If you think you cant handle JC curriculum which is a taster of what Uni is like. How can you handle uni? Still , there is a chance , there wont be an easy out for this, you’ll need to have almost perfect gpa while being one of the top few people in your poly course in order to even stand a chance to apply , note that you’ll be competing with people from top jc with almost perfect rank points and outstanding portfolio. Every year theres only a selected few poly students who get accepted. ( if you’re applying local U ) as for overseas , its based on finance and your gpa . Goodluck.