We have known beforehand that you will feel overwhelmed at first as we have said on the local board. Sorry for not intending to offend you. 
You have to keep trying friend, dont give up. If you havent been accepted into the campaign then I think its not just you. There are still many others who might have fared worse than you because they are unable or have no intention to change.
Because you realize that you made a mistake before because your post history and so on want to change so I see you have changed pretty well so far. Its just that you are still not active enough to post and maybe that will be a problem for you. You must have consistency of posts whether you use signatures or not, and therefore you will have a better chance because in addition to your activities in the forum, the consistency of posts will also be considered by the manager.
1. Yes, you can ask, if it will help you see flaws and fix them going forward.
2. Yes, this is the main thing for you. When you can make a quality post then you are included in the category of a good poster and you will get the benefits, it could be merit.
3. LOL, that is a frustrating form. This is something you should avoid. Think positive and keep moving in a better direction because it will make you have a very pleasant posting habit if you succeed later.
You have to keep trying friend, dont give up. If you havent been accepted into the campaign then I think its not just you. There are still many others who might have fared worse than you because they are unable or have no intention to change.Because you realize that you made a mistake before because your post history and so on want to change so I see you have changed pretty well so far. Its just that you are still not active enough to post and maybe that will be a problem for you. You must have consistency of posts whether you use signatures or not, and therefore you will have a better chance because in addition to your activities in the forum, the consistency of posts will also be considered by the manager.
- Can I ask the manager why he did not accept my application ?
- Improve the quality of posts first before joining a campaign ?
- Accept the fact that I will continue to be ignored by managers for every campaign I apply for because of my previous posting history which might be labeled as a shit poster ?
2. Yes, this is the main thing for you. When you can make a quality post then you are included in the category of a good poster and you will get the benefits, it could be merit.
3. LOL, that is a frustrating form. This is something you should avoid. Think positive and keep moving in a better direction because it will make you have a very pleasant posting habit if you succeed later.