Swimming - need direction

No, not "direction" as in I keep bumping into people. "Direction" as in I'd like to improve but am not really sure how. I did another 45 lengths (-ish I can never keep count) today and it's definitely getting easier, but I think my technique is getting sloppier and I worry I'm reinforcing bad habits. After about 40 lengths, I checked my strokes per length and it was 23!. That's bad from my usual 19.

I also realise how dull the swimming aspect of my blog must be without me knowing what I should be doing. I'll make an effort to attend another total immersion class. That way at least I'll be able to tell the world what I'm doing wrong.