There will be no problem with Content ID - if you use it, you can whitelist your channel. If you do not use CID, there will be no problem.
There will be no problem with AudioJungle exclusivity policy as well. You can check it here:
Can I promote my song without a watermark if I’m an exclusive author?
We always encourage authors to watermark their work to protect against illicit use. Watermarking is not *required for personal listening promotion.
For accounts that are exclusive, please make sure the site where you post the item demo / preview >does not offer the possibility to license the track. Otherwise, infringement is likely to occur.
What about my own projects or freelance work?
You may make use of your own exclusive items in connection with your own personal projects or general freelance activities, without requiring the purchase of a license from Envato, provided the projects or activities are not directly related to the item or part of a publicly available service as prohibited above.
For example, you can use your own exclusive music track to help create a promotional video for a client or personal project. You can use your own exclusive theme to help create a customized website for a client project.
Remember, you are not permitted to buy your own items on Envato (exclusive or not) under our Author Terms as a precaution against fraudulent or disreputable conduct.