What was your score kishore?
If it is above 40, then i will recommend, that u should go for the exam.
Personally speaking, i found the final HFS mock *much* harder than the real one. Mainly because, it did not tell, how many questions are correct.
i had a lot of those, in which i ticked the correct option(s), but those were not the ONLY correct ones.
so analyse your mock exam results carefully, and accordingly decide.
All the best.