I hate to break it to you but you wasted your money on additional nutrients. How many bottles of NPK do you need? The 3part can be tweaked to supply more PK or more N at any time, as well as supplying an adequate amount of secondary macro and micro nutrients. So why do you need 3 more bottles when you've already got the basics covered???
So, Homebrewer, are you on a mission to just tell people to not use AN? Yeah, you're not a shill. LOL
Let's answer the grower's question, shall we?
I think the lineup of nutes you have going right now is good and you don't need to add any more at this point. What I would say is that you want to try to use the extra nutes your next grow and earlier in the flowering stage.
But you know that now and you've learned.
I think at this point your plants aren't going to be able to use anything more. It's like trying to overfill a gas tank.
Stick with the nutes you have, tell your caregiver to keep doing what you're doing, and the next grow, make sure you have a plan in mind to use those other nutes.
good luck with the caregiver - I am too paranoid to leave my babies with anyone else.