Now do not get me wrong: I am not opposed to activities. I like a good game of vocabulary BINGO, because it is a nice break for students (and for me), and I definitely enjoy using Kahoot with students every once in awhile. At the same time, I do not want to rely on these as primary activities.
But let me also say that teaching using CI is a process and definitely takes time to learn. By no means do I ever want to turn off someone from using a CI activity regardless of his/her familiarity with CI. I will be the first to say that I am still learning how to implement CI in my classroom!
If you have never attended a Blaine Ray workshop or attended NTPRS, I highly recommend that you do, because you will get the chance to experience language learning first hand like one of your students. I feel like I have learned so much about sequencing CI activities just from attending Betsy Paskvan's Japanese sessions at these past two NTPRS conferences (and yes, in many cases, i have taken her Japanese lessons and Latinized them!). Apparently, Betsy's sequencing of activities has worked, because I can still retell her "Yoda, Darth Vader, and Oprah" story in Japanese, and that was almost two years ago!