Something that you can also pay attention to specifically for an instant drush is score difference, your opponent will have around 200 more score than you in the first few minutes which isn’t possible unless they’re producing military.
If you know your opponent is Lithuanians and you see that the score is shooting up that fast, just take care to make sure you have all your sheep and can queue loom if you need to.
The instant drush is a huge hit to the lith players eco efficiency, so even if you take a small amount of damage like losing houses or walling in a woodline you will still be in a decent spot.
The most important thing is to not panic, because your opponent has set themselves up to be in a spot where they NEED to do damage, because if they don’t they’ll just be behind