As another low hours student (C152), I’d say to use whatever works.
In the very early stages I tended to crab all the way in, straightening up in the flare – although as already mentioned, this can give you an awful lot of work to do in the last few seconds of flight. Combined with lack of experience, this makes for - ahem - interesting touch downs. :o
Now with a little more experience (around 30 hours) I find myself subconsciously using wing down until the last 100’ or so, then a combination of aileron & rudder to keep wings level along the centre line. This seems to produce consistently acceptable landings, if not exactly greasers.
Don’t be too worried if it doesn’t all come together straight away – technique will certainly develop with practice. (I vividly remember my first ever approach – crosswind, naturally – and wondering why we weren’t flying towards the runway, even though I was pointing the nose straight at it).
