The 4th day of TH9 is probably the hardest, where lab, sf and clan castle complete on the same day so you need to farm hard to keep them all busy again. Lab becomes empty too, so

If you read my TH9 guide, you’ll know what to upgrade here, but I’ll link it so that you can read it: https://clashguideswithdusk.wordpress.com/2016/09/21/th9-guide-early/

After the first few heavy upgrades, do gold and elixir storage while you continue farming. Do some defenses and make sure you upgrade your DE drill and try to squeeze out an army camp upgrade

At the end of day 4, this is what you should have. AQ perpetually upgrading, and you are making progress in your TH9 offense. You want to knock out many TH9 upgrades asap because we aren’t staying here long, once everything important is done, its TH10 time