I don't understand the 'looking at 3 o'clock' to find the bow wave malarkey
Imagine you have a skewer going right through your body from top to bottom. When you turn to breath, keep this straight line and rotate your whole body including head, but your head/neck remain in this straight line
Only rotate as far enough as to see the top edge of the pool. Or imagine someone walking poolside and you're looking at their ankles. That's as far as you need to rotate to breath
If you cannot get enough breath in with your head in the correct position and only rotating that far then you are going too fast and need to slow your kicking and stroking right down
As has been said above, you need to be going on your own for a couple of sessions, but don't gt disheartened. Keep at it and it will click and then you can move on to refine another technique
(Read on for longer answer if you still want to learn front crawl...)
1) I'm surprised at the number of instructors you've had over a relatively low number of lessons, especially instructors #3, #4, and #5. Have you given them enough time, both to assess you and then refine your technique?
2) You don't say what you're finding difficult; you say 'my technique is all wrong'. How do you know? Who's telling you this or are you going by feel? Is it your breathing? Is it kicking? Are you perhaps swimming too fast and therefore sacrificing technique for speed?
3) You also say 'there isn't enough time to do everything'. Are you perhaps trying to resolve all issues at the same time (subject to your answer to 2) above)?
4) Most people would recommend at least 3 sessions a week to see true progress so are you training enough in the first place?
I am raising these as hypothetical questions rather than make any criticism of your original post/actions so please don't be offended at my approach
For me I find progress in swimming can be slow and also stop/start. I can work at a particular technique for weeks (and I mean weeks) and then one day it clicks. A couple of weeks later it is embedded as muscle memory and I move onto correcting something else. Then I can feel as if I am plateauing until I reach the next improvement and it becomes muscle memory. Rinse and repeat as necessary
For example (going back to 2) and 3) above), I wouldn't work on kicking, breathing and stroking all at the same time. I would perhaps work on my stroke for 5/6 weeks and once I was comfortable there had been progress, I would look to improve my kick a little
If you're happy to, post a little bit more about what your current abilities/difficulties are and I am sure others will give their views and opinions and offer whatever advice they can. If you don't want to do that, feel free to PM me and we can talk offline.