Personally, I haven't really seen you be mingy and you're pretty fun to be around, however there's a few things that concern me:
1. As an admin, you'll be responsible for directly mentoring new trial mods and they will be very influenced by you. As stated before, I have not personally witnessed you being mingy, but others apparently have.
2. You put an app up for admin like a week or two ago, but you deleted it once you started getting -supports. To me, this shows that you need work with being able to handle constructive criticism.
3. To me, this app has kind of come out of left field because it didn't seem like you had any interest in greater responsibilities.
The best advice I can give you is to cut down on (apparently) being mingy, embrace constructive criticism, and also learn to handle personal issues with people. If someone upsets you, take it up with them directly. One day you'll make a great admin, but I personally just don't think that you're ready currently.
-Support