Step 10 involves conversations, step 11 involves the post table, step 12 involves the IP tables. All of these can have quite a lot of data so MySQL may take some time to alter them. You can use SHOW PROCESSLIST; to monitor them.
You should be able to go straight into the CLI. Note that it doesn't strictly provide an advantage -- MySQL won't run the query any faster -- except in the case of a timeout. Where you'd normally get a timeout and have to refresh, you won't get the timeout and the script will continue when the query completes.