Neinty Nein's page

So in two days I'm playing pathfinder for the first time, so I'm not very familiar with the world. I'm hoping someone could take some of the ideas I have for my characters backstory, and turn it into a full backstory. I'd really appreciate it.

My character is the 19 year old son of a minor noble from the River Kingdoms. He's a wizard. Do to his upbringing, he often looks upon "peasants" with distaste. He has a half orc bodyguard hired by his father to protect him (and carry his things). his father was a military man that was given a small piece of land for his long service, so the son was brought up in a household where organization and such was important. His alignment is Lawful Neutral

Things I dont know: Where he learned magic, his reason for adventure, etc.

If anyone could help me make or make me a backstory, that'd be great. I know I'm asking a lot.

So, I'm aware that there are nine different levels of spells for wizards, and I'm confused on when you can or cannot learn these spells. I'm preparing to play Pathfinder for the first time in a few days, so I have no previous experience. My intelligence is 18, so I read that I would be able to cast up to level 8 skills with that intelligence, but am I even able to learn them, or am I not able to learn them until level 8?