Please note that this section of the forum is meant to be used a celebration of you hitting a particular milestone / goal / achievement and not necessarily used to advertise either your channel or the goal you wish to reach. As outlined in the sectional rules which I have linked below : - https://freedom.community.tm/threads/milestone-section-rules-read-before-posting.185317/
With that being said I do wish you all the luck on reaching 200 subscribers before December, one thing you may want to do is link your channel with your forum account, which will help people find your channel easier - you can do this by copying your channel ID (in your case UCPCVPGEusRggGzVU2q1-8Yg ) into the YouTUbe section of your forum account - as at the minute I can see you copied your whole URL and thats why your showing up as an error on your posts.