Adsense is the one of the best monetizing options for publishers, but getting an Adsense approval is a difficult task, google is very strict with their Adsense policies, I also got Adsense after 3,4 disapprovals, but when you apply for Adsense from same email, then you will not able to apply from same email account after 3 rejections, to apply again you have to create a new email account to apply