so you guys have some tips you can toss at this good old man ?
Let's assume that you aren't encountering a strange difficulty bug here...
What's important to keep in mind in the RTS part of this game is that it can be quite fast.
The AI likes spamming you with units if it gets the possibility to do so, so you have to prevent that.
1. Always try to capture ressource points (the sites where you can build recruitment centers) and try to prevent the enemy from getting more than you and keeping them.
2. Especially if you have some fast units like hunters, capture those building sites asap.
3. Until you have some anti-blobbing abilities (passive abilities that do AoE damage, like the bazooka upgrade or active upgrades that can disable enemies, like the shaman's stun ability) and familiarized yourself with the game a bit, counter the enemy unit spam with spamming units yourself. It's vital to keep up production unless you have the upper hand. Set rally points to help getting your troops to the frontline. Not very elegant, but it works at first.
4. Finally, the dragon can help to fight of an attack. Initially he's a bit weak, but with a few updates he can be a great help to stop enemy offensives or capture the enemy base.