Every year since 2012. Leading by Example. I'm the only H2
Chemistry private tutor in Singapore who does this.
http://infinity.usanethosting.com/Tuition/#A_Level_Results
Since you're taking A levels out of interest, not out of
necessity for University admission, then just take the subjects
you're interested in and can self-study for.
To self-study, you can use online resources such as OwlCove.sg (local),
TickNinja (local),
and of course, internationally acclaimed Khan Academy (international), by
Salman Khan, the man who taught himself hundreds of subjects across
all levels, and now teaches billions of people online for free.
I should say that OwlCove and TickNinja, being by past students
for current students... has a very distinct disadvantage for the A
Level as these students were only trained in the previous
syllabus.
The A level has just undergone a major syllabus change. While
80% of the previous syllabus still applies, 20% has changed. And
this 20% matters. Studying outdated notes may make a student worse
off.
E.g. for Quantum Physics, the formula for uncertainty principle
had a slight change. Students following the previous syllabus'
formula will always get a wrong answer, even though the formula is
technically correct.
Students following the definitions of the previous syllabus for
the topic of Gravitation will also find that they lose marks to one
or two additional key words that have been added to the SEAB
syllabus.