Boxplot/ Box & Whisker help in ggplot2 (R) Need to remove duplicates while also plotting on one plot

So I would like to create a plot of 6 different boxplots (so all in one graphic). I am however running into some trouble. First, there are many NA's and they are randomly admist the dataset so I am unsure how to plot all the variables on one plot with this issue. Secondly, ggplot requires a y variable.... I am fairly new to the tidyverse but am unsure how to create a y variable that will allow for each plot to be represented. Here is the code I have thus far as well as some sample data, just getting some nonsense...:So I would like to create a plot of 6 different