You must pray for yourself constantly. How could it be otherwise? We worship God by believing in Him, trusting Him, and loving Him wholeheartedly - and we can attain to that only through prayer. The sole object of our being here is that we may grow like Him - and we can do that only through prayer. The more we pray for ourselves the more power will our prayers have for any other purpose whatever; so praying for ourselves is the reverse of selfishness - it is truly glorifying God.