Let's start with "good work".
I'm impressed that you are recovering and increasing on 3 days a week. As long as that is true, no reason to go to 2x a week like I have (I'm 64).
In terms of Deadlift to Squat ratio, that is not a one ratio fits all deal. Short legs & long back could explain that easily enough. No matter the case... if you can add 5 pounds... ADD 5 POUNDS. Gravity is very wise in these matters.
I typically take half the rest time (sometimes less) on warmup sets. But if you're getting all the reps on all three sets, you've succeed. Declare victory and move on.
Obviously a coach is going to be a hell of a lot more qualified and a lot more specific. Good work!