AMD Phenom II X6 1055T

Before I begin, I just need to warn everyone that I am twelve years old. Yes, you read that correctly. I am 12 years old.
I do not want any comments saying "I don't think you should even try as a twelve year old." Although my age is alarming for someone trying this, everyone, no matter what age, was an overclocking/pc in general novice. It does not matter the age, since you can learn this at almost anytime. And, my time is now. I want to absorb knowledge about computers as much as anyone older than me would.

Alright, I have an AMD Phenom II X6 1055T Processor. I just overclocked it, I want to make sure this is safe:
Changed CPU Ratio from "Auto" to "14." (Question: Why am I allowed to go to max 16.5? I thought it was max 14.)
Changed AI Tuner from "Disabled (or Auto)" to "Enabled"
Changed "FSB" (Cpu Frequency) from "Auto" to "250" to get EXACTLY 3.5 GHZ.
Changed DRAM Frequency from "Auto" to "1333." Auto changed the frequency to 1667 MHZ, but I have mixed two different RAMs to make up 12 GB: http://www.newegg.com/Product/Product.aspx?Item=N82E168... and http://www.newegg.com/Product/Product.aspx?Item=N82E168... and made it 1333 MHZ to be safe...(read next question)
I was wondering if I could change the DRAM Frequency to 1667, since they both run at 1667 MHZ, although they are different RAMs.

Are my changes safe?

And is changing the DRAM Frequency to 1667 MHZ safe?
Everything seems stable at the moment after I changed this. I haven't tried any games yet, though.
Thanks everyone!

Specs:
Ram: http://www.newegg.com/Product/Product.aspx?Item=N82E168... and http://www.newegg.com/Product/Product.aspx?Item=N82E168...
CPU: Amd Phenom II X6 1055T
GPU: nVidia Gtx 560 TI (this is why I want to overclock, so it won't be bottlenecked)
PSU: OCZ Modstream Pro 600W