New niche

Should i try this niche or not?

My selected keywords

These are my first ever keywords. In first picture results are Broad in second Exact. I have searched for keywords for very long time, some of keywords had to much competition, other not enough traffic or SeoV.

 I think these  keywords have high traffic and is well paid. BUT competition is incredible as for first time with seo and affiliate marketing.

Services I am using

Hosting - Hostgator
Domains - NameCheap
Articles writing - Warriors Forum
Off Page Seo - Warriors Forum
Seo tool - Market Samurai
Affiliate networks - Google adsense , Amazon

My goals

Hello, this is my first blog ever. I have goal to earn 500$/month by the end of 2012, but i have problems in my way :
1. English is not my native language.
2. I don't know anything about off page seo.
3. It's my first time in affiliate business.
In this blog I will write about my earnings , expenses, mistakes and achievements.