1) I've no regrets taking form 6. Resolve !!! Yeah, I was resolved to taking form 6 and have no regrets no matter what will happen. That was what I told myself. Its tough, much tougher than SPM. But where's the challenge and fun if everything is so easy ?

2) You do not need to study everyday for a few hours. For lower 6, you can spare one day not studying at all to relax your mind but for the other 6 days you've to study as much as possible.

3) There will be 2 classes for those taking science stream, physics and biology. P.Am, Maths T, Chem will be compulsory.

4) You need 2 passes to secure your place in UTAR. If you can't do that, you can't even get into UTAR.

For STPM to be recognised by the UK University, Malaysian Gov had to increase the difficulty of STPM to be higher of that of A-levels.
That and some political reasons.
STPM > A levels(those who sat for it in Malaysia).

Yes.
http://en.wikipedia.org/wiki/STPM
"STPM is internationally recognised by many universities, especially those within the Commonwealth of Nations as well as the United States and the Republic of Ireland. Most universities consider STPM results equivalent to GCE A-Level results."