Ok, but olive oil is necessary for validity, ask St Thomas Aquinas. So is the correct form. So if the bishop used canola oil, positive doubt. Seeing as how important the sacraments are and the fact that you really cant go back and check, I would go and get it done regardless. You have nothing to loose by getting it done. Whether or not your devotion grew to Our Lady doesn’t prove the validity of the sacrament.
It's only speculative what oil was used by the bishop. Again, there is no positive doubt.
I already did my part. I trust in God to have effected it. If God isn't going to recognize my confirmation as valid because of an impediment that is no fault of my own, and because of something I had no control over, then there's nothing I can do about it. Getting conditionally confirmed isn't a practical reality for me. If God sends a trad bishop within the proximty of my living area, and I happen to run into him by Providence, then I'll ask him to conditionally confirm me. Otherwise, I'm not worring about it.