Well, my co-authored research paper did not pass the 1st round of submission, as the journal is not considering additional manuscripts on our topic for the time being. Now we will need to prepare the paper for submission to another journal. More words, more work.
Although I'm a little disappointed with the first rejection of my first submission, I guess such outcomes are not uncommon in academia. I'm disappointed but not discouraged. I will move on and see what comes.