Can't help with the macros part (see above).
As for SL 5x5, mind-muscle connection is irrelevant. As long as you moved the weight with good form/didn't get injured, that's all that matters. Rinse and repeat until you stall.
If you started out light like Medhi advises, there really shouldn't be any MMC because you're not moving heavy enough weight. Also, in my experience, MMC is much easier to establish on isolation movements and harder on compounds. SL is all compound movements.
Lastly, remember MMC is largely irrelevant when it comes to strength. SL is a beginner strength (not powerlifting) program. If you really want to focus on MMC that badly, find a beginner bodybuilding program.