Okay, it's not quite as bad as it looks. Russia and Spain just started a war with the Ottomans so they effectively have a lot less troops to fight me with. I also have a few colonial nations, so with luck GB will waste their troops and fleets attacking Vinland and New Sweden.
I'm fairly strong on ideas, and I'm soon going to be at 112% discipline. My king (Who the game named, not me) Gustav Adolph is a general with excellent shock and fire.
I suspect that if I blitz Lubeck (They are big and have eaten half of Denmark and Brandenburg) early on I can take Pomerania for myself and return a ton of cores to my allies early on to help the war effort.
I don't usually fight wars this scale, or this one sided. Do I have a chance?