Urlea - I am glad to hear you have a swim partner who will help you w/ drills.
I was doing the Popov drill (3 stroke roll to side 6 kick) today and realized I have been getting slack on the purpose of the drills - I have just been sluffing through them. I started paying attention to the drill, why I was doing it, what purpose it served and what my body was doing.
The Popov is mainly for balance. I realized when I started to pay attention that I was very well balanced on one side (my breathing roll side) and poorly balanced on the other side. I started really focusing on balancing on that side too. It is my weaker side and I have more problem w/ roll, getting high elbows and my arm nicely out of the water.
So do your drills and have her explain what purpose they serve so you can be aware of it. If there are any she isn't sure of and you can't find just let me know and I will ask my coach she is really good about explaining the whys behind everything, body position, arms, breathing etc and how the drills help.
When I first started out I found the Popov, finger tip drag and catchup to be the most beneficial.
It's about the journey and being in the moment, not about the destination