Still struggling to launch the game in 1.8.9 on Mac

Opened a thread on this before, and the Helper suggested that I update my game. Unfortunately I have no idea how to do so. He said post the crash log, which will be following the description. I appreciate the help, however I am still stuck on this issue, and still unable to launch Minecraft for the last 3 days. I just would like to play the game in the selected version and for it to work as intented.