Hi,
If you are able to apply by yourself it is good, because consultant will charge you a lot. Read carefully instructions and guide on cic website, take a test on website to check your score and download all required forms. Prepare for IELTS.
If at any point you need assistant write on forum someone will help. Or check related previous on going thread.
http://www.cic.gc.ca/english/information/applications/skilled.asphope its helps,
hmisabpk