Ok, first of all, 53 dives in 10 months is not a lot. But you have done a lot of courses. Do you know now what you want in diving? And do you still like diving? And are you now doing fundives? The best way to learn diving is making the dives on your own, without instructor, but with buddy. Compassnavigation without guide, etc.
When I started diving I directly knew I want to do technical dives (but my first dive was 15 years earlier). 10 months after my ow course I had over 200 dives and was DM (ow, aow, rescue, nitrox, deep,drysuit and dm I did). Between ow and aow there where 40 dives without instructor, including more demanding dives like nightdives or driftdives. In this time I learned diving, feeling with gasplanning, compass navigation, etc, and I still knew I want to do technical diving. In 11 months I was master scubadiver too, but with 250 dives. There is a big difference with 53 dives. For you I would advice you to do dives for fun, just to get experience. Where it doesn't matter, but just do some fundives.
I know the frustrating things that you want to go further. But it is possible to progress and still have fun. Your attitude and willing must be there. Try to dive 2-3 times a week.
When a diver comes to me to do an adv. nitrox course with just 50 dives, I will not refuse directly, but want to dive first to see how the diver dives. I will say too that it will take some time and practising on your own to reach the level to finish the course. A week course with every day diving does normally not work for a diver with 50 dives. Most divers will need a sort of Essentials to get the trim and bouyancy ready to start an-dp/ART. So I will say that too. At the moment I have never had a diver with so less dives that was at the appropriate level to start the course directly. But then it depends on the diver. If a diver wants, I sent him home with some homework. After a few weeks he comes back and we dive again. The divers who really want can progress fast now. But 1 thing never forget: diving must be fun.
My own an/dp course was with an instructor who wanted me not to dive anymore with friends that where diving single tank. That was not good for my diving he said. But I refused. I always say to people who want to start technical diving and I give them some homework: in every dive you can find a moment, even if you dive with a ow diver. Just watch a fish longer, hold trim and stop finning and just watch. In every dive there is a moment you can practise backwardsfinning. Some other things like gassharing can be done with a single tank diver too on the last 5 minutes of a dive, but then discuss that in front. Becoming a better diver does not depend on equipment or depth. Taking a twinset in 10m depth with a sportsdiver gives you still some more experience. It is your attitude and your willing to improve. Think on trim, try to watch some fish without moving, shoot an smb at end of the dive to practise, etc. This skills are the basic ones you need to go further in diving. I will never say to a diver who wants to start technical diving that normal sportsdiving is impossible. Fun fun fun is most important.