Joining the military for any trade isn't just finish everything and then wait in line behind the last person who just finished their application for the same trades.
You are merit listed at the end of the application process (CFAT, Medical, Interview, Background Check, Screening Ect...)
The merit list is based on how competitive you really are as opposed to others on the list.
I really feel like the merit list isn't talked about enough on this forum. Doesn't matter how many people are applying or have applied to the infantry because you could be the 100th person to apply but if you have everything the army is looking for in a soldier then you could be first on the list.