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I understand. Yes you can edit posts, I often edit my posts and make corrections. I sent you private message using https://busy.org/messages/ when you log in use your private posting key found in Permissions. This is only used for posting and voting purposes. Also I recommend reading the post about security https://steemit.com/steemit-guides/@jerrybanfield/the-steemit-account-security-tutorial-june-2017 thanks

Very soon you will be rewarded for your first post (7 days I think), you will need to log in and go to Wallet and redeem rewards. Congratulations!