Well hard for me to say... I learned classical piano starting at age 8 and I learned all the proper ways to do stuff. But then I didn't play for 12 years and when I started again it was in a totally different type of music and style of playing. I learned a lot of stuff over again and I'm trying to pull from that. I think technique can be your own in some ways, I mean there are certain ways that are the only way it makes sense. It should come with time. You could try checking out some youtube videos too, I never have but it seems like there would be videos teaching technique and scales.
Just making sure but when I say "minor keys" I don't mean the black keys, the black keys just represent half steps from their surrounding white keys (confusingly, E to F and B to C are half steps, without a black key in between, whereas others like A to B are whole steps, and they have a black key between that is the half step). What I mean by minor keys is not related to the physical keys on the keyboard, but the scale being played. You might already know this though I just wanted to make sure because I couldn't tell if you were perhaps not understanding what I meant.

If you're playing all the white keys only then you're in some mode of A minor or C major because all the other scales have 1 or more black keys in them.