To What Extend Seo Is Effective?

Hello everyone,

I am absolute newbie to SEO but I am very much determine to learn to art and science of SEO. However, before committing myself to studying I wold like you to give me friendly advice so I may understand better on what should I expect from the time invested to it.

I just finished my website related to school tutoring services and and start paying to EdWords to PPC eds. It works and I am getting clients on a regular basis, however, it is expensive and I wold like to get more clients. After reading articles on the web for several days I found that organic search can be a big supplement to the traffic and decided to learn more about SEO. Knowledge of several facts can help me a lot in my plans but that info is available only to people with experience with SEO. Questions:

1) Can I expect that my website will be ranked by Google in the first 10 or 5 positions on keywords like “math tutor” and “home tutoring” ? If yes:

- what will be involved to get there?
- how long may it take?
- how many visitors should it bring to me?

2) What is a better quality traffic: PPC or Organic search?

3) Any additional advice to a newbie will be appreciated

Thank you in advance,
Barmaley

P.S. Apologies for English style and grammar mistakes - English is my second languish