So the teachers like who ever failed both mid year and end of year wont be able to 3 and 4 next year , i havent failed the course work or sacs or anyhing so technically i havent failed. however can teachers stop you fom doing a subject you really want to do. like is it against vccaa rules
They shouldn't be able to stop you if you haven't technically "failed", but even if they do, there are always ways around them (Distance Ed is one way for example) if you want to persist with methods (and you should!). The most likely scenario is that they will let you continue though, especially if they understand that you prioritised your 3/4s
However, you're neglect of methods 1/2 may put you at a disadvantage next year as the courses overlap a fair bit (like 60% same). However, don't stress
You have a month or two ahead of you to work hard and catch-up on the time that you understandably instead spent on your 3/4s. I would recommend that you go over the following topics:
1) Function theory (graphs, domains, transformations etc.)
2) Differential calculus and applications
3) Integration and applications
4) Basic probability (not permutations and combinatorics though!)
5) Brush up on using your CAS, familiarity will help greatly next year
Good luck!