some questions for arcane rotation

ok i duno why my toon is a male.
but anyway ive been really horrible on my arcane mage. so far my gear is
correctly gemmed and enchanted, i use food sometimes too.

thing is my dps is really bad.

im used to playing caster, i have a lock and spriest, lock takes a lot to do before casting, dot dot dot channel stuff etc sort of the same w/ spriest.

so w/ my arcane my brain is probly trying to find the complicated styles.

basically what i do is arcane blast till im the middle of my mana
then i do arcane power and my mana is up again and im doing more dmg
after that i can use my mana gem then arcane blast arcane blast
i use my trinket too sometimes
of course i pop my mirror image when im done w/ using arcane power

im kinda confused as to how other mages do it perfectly. i have significantly high dps on my lock and spriest, i understand them completely.

if you see a mage doing low dps pls try to explain or give a better remark than "so and so % dps as a mage? pathetic"

btw i leveled as an ice mage and was perfectly happy w/ it , but i had to respec cause i dont pvp on 85.
First and foremost, you should post on your mage so we can make sure you have the right talents, stats, and glyphs. Also the rotation you stated seems off. I suggest you read the arcane sticky (mage forums first page at the top) to outline what you are doing. From what you posted, you do not seem to be conforming to the proper burn phase and conserve phase model that arcane is meant to do.