Hi merrwine. Welcome to this board.
First, I think the reason your 2 posts were passed over, is bcs it is convention to post your losses (not your wins), if you require feedback. In other words, it is taken as read that you should have the ability to self-analyse,if you are winning. Losses are what we really need to see, in order to criticise constructively. (To be honest, if you want further feed back on a winning post, then you should join a clan and ask your clan members for assistance).
Second,if you want advice in future, please post the replay and not a youtube video. This is bcs a youtube video simply directs the game from your perspective, and therefore limits free criticism, whereas a game download enables the analyser to choose what he needs to see, without your influence.
I did watch the vid- but I am only going to make a few points, in view of what I have written above:
1) Did you mine? 'S' mines can be effective against blobs and will at least slow them down
2) Stug Ausf.E Got snared by the USF blob, which also took out your SC...
3) a StugAusf.E is not really an AT counter...
Consider this guide -it may be of some help
http://www.coh2.org/guides/29278/mechanised-assault-guide
gl hf