Peace Light,
In Islam, we believe that if a person desires to be guided, then God will make his/her path easy. However, if there's no desire to seek the truth, God will not guide then and He will indeed leave you to guide yourself, which is ofcourse is impossible. So that's what the ayat is referring to. God will not guide unless you want to be guided. The guidence comes from God. This is the essential meaning of the 2 verses!