So 7 years ago? Have you continued training since then? If so, hopefully you have a better handle on the fundamental escape concepts than you did then.
Honestly I was confused at first as to what you were even trying to do until drop bear mentioned the ghost escape. I donāt know why your coach was encouraging you to try that. Firstly, itās a bit of an advanced technique for a beginner. Secondly, your arms were completely in the wrong position for the ghost escape. Where they were, you had zero chance of completing that escape. That means the rest of your body movement was completely counterproductive. (If you werenāt trying the ghost, then your coach was just encouraging you to move the wrong direction for no reason at all.)
Iāll try to post a video or two on side control survival and escape this week. In the meantime, hereās a really good video on the correct way to execute the ghost escape.