Right now I'm 21 taking degree edi but still haven feel any pressure in my studies. Mayb that's y my results are not too good.

If you are only targeting for Form 6 and not scholarships or flying grades, I can find no fault in treating Form 4 as a honeymoon year. Heck, you can even treat Form 5 as ur honeymoon year as still pass all ur subjects, like I did nI actually spend whole day gambling in the class in my Form 4 days

But if you wan to get better grades I suggest you not to do it. Just balance ur study time with other activities and you should get a fairly good grade. Good luck to you.