How do I defend against the 8-10 minutes rushes as Sweden?

I'm playing as Sweden in 1v1 and almost every game I get rushes between the 8 to 10 minute mark. Usually at this point I have about 15-20 Corroleon while my opponent usually has about 10-15 cav and another 15-20 infantry. I get steam rolled.

I'm following build orders posted by Aussie on YouTube and I can't defend the rushes. I don't know how I can get more units out faster.

Edit: Russians are hitting my base at the 7:45 mark with 30-40 Strelet.

What am I supposed to do?