EDIT: I don't know if you want to make tier 3 rune pages just yet. Making two full tier 3 rune pages with little to no common runes might cost tens of thousands of IP. Which is not THAT much but it's grindy. You would enjoy the game more / get better at the game from taking just normal tier 1 runes, and using your IP to buy new champs and learn the game.
Dying to Wukong because you don't know what his abilities do and you used all your burst on his clone is worse than having tier 1 runes.
You can fill up your tier 3 runes before ranked at level 30.
ANYWAY.
GENERALLY you want to have at least two all-purpose rune pages: AP and AD.
AD page:
-Flat AD reds.
-Flat armor yellows.
-Scaling MR blues.
-Movespeed quints.
AP page:
-Hybrid penetration reds.
-Scaling HP yellows.
-Flat AP blues.
-Flat AP quints.
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NOW, **people are gonna disagree ** and say how you need 3 attack speed reds for ADCs or how CDR blues are better on Syndra or how Tryndamere needs some crit chance, but GENERALLY, the above runepages will cover almost every champion in the game.
While they may not be perfect for every situation, once you finish them up, you'll be good enough that shit that happens in game (like dying once or missing a few farm) will have more impact than your runes.
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I had a friend who played with tier 1 runes of the wrong stat (he didn't care, used IP for champions) and wrecked lane all the time, just by playing properly. Even against golds and sometimes low plats (he played with plat friends).
Once you get more experienced at your champions/the game you'll probably start making more specialized runepages. Especially for champions that scale with attack speed like Udyr and Skarner, and tanks like Shen or Mundo.