Howaboutthat you are not ready for admin.
The main reasons are:
1)Maturity- currently your immature at times and I see this both on forums and ingame.The main example is that you joke around about abusing your powers.
2)Poor application- The application you created lacks detail and seems rushed with many spelling mistakes, I dont think it really shows why you want to be an admin, There is more to being an admin than just being friendly and dedicated to the server.
3)Mistakes/needs help/lack of experience- I have seen many times you have made a mistake or needed help to deal with a report. As you are a mod you should know how to deal with most reports and right now you dont.
Overall you have a lot of points to improve on before becoming an admin, I have only listed a few.