Try dodging bullets and taking cover when you're shot when possible.
Trust me those extra few seconds you spend hiding from someone shooting at you could be the difference between winning or losing a firefight!
Also as Zolerox said, premium does not affect your health at all, in fact only green modifications affect your health. You said you are currently using clotting agent 3 which does not actually change your health amount but rather your health regeneration speed. If you feel like you need more health and you don't mind moving slowly the kevlar variants offer extra health in exchange for movement speed - it's up to you.
If you plan on playing the game as an Australian it's just something you need to accept.
I've been playing from NSW for quite a number of years and have a hefty investment in it too. I'd say particularly at this point it's unlikely Australians will get their own server especially considering the state of G1 at the moment. Han was briefly moved to Sydney for testing at some point but was moved back to HK shortly after, such is life.
Either accept that the latency will lead to a few losses and takes a bit of adjustment, play a different (probably better) game, or move country - sadly those are your options.
Man threads get derailed so quickly in this forum I swear.
Just on the topic of the Anubis though, I do agree that the nerfs were totally unnecessary and should be reversed - however even if it was a 'scout' variant of the DMR the main point of the DMR was the reverse drop off and the incredible hard damage; there's just no reason to use the Anubis over any other sniper.
I digress though - the key point of snipers is to sit away from a point and watch it, not to be jumping around like a pixie flailing their FBW for a kill at 5m hence my suggestion; being annoyed at losing to a sniper from 80m away is just as silly as getting outgunned at close range by an smg or shotgun and claiming it's broken - it's what the weapon is meant to do, my suggestion is about stopping weapons from doing what they're /not/ meant to do.
I am aware that this has been raised before, but why do we not just give all sniper rifles reverse damage drop-off?
For example - snipers deal a minimal amount of damage (or perhaps a % of their maximum damage) and deal gradually more damage until a certain range where the damage becomes it's 'default' damage (say 40-50m).
Chiefly, this would deal with the devastation that is the N-HVR-762 and also fix the other quick-switching issues associated with other snipers (mainly the scout).
It would also allow them to safely buff the damage or fire rate of other rifles (*cough* Anubis *cough*) because it wouldn't pose a risk of being used at closer ranges.