I am a new diver from Canada and am desperately wanting to skip this upcoming winter. I want to go somewhere warm from January to June.
I have advanced open water from PADI, a handful of specialties and about 42 dives so far.
Take a step back, and let's analyse the route to MSDT
DM (post rescue). Lots to MASTER (rather than just tick boxes) Guiding, being responsible underwater as well as having the instincts and ability to deal with issues and nervous/novice divers requires experience and mental bandwidth.
It takes time to build that experience and confidence, and your diving skills should be something people look upto, so if you can't right now hold a midwater stop and deploy a dsmb without any significant depth changes +/-1' or 300mm then you're not ready
Instructor training is easy - most candidates problem is self induced stress and fear of failure. You only learn how to carry out the course to standards. It doesn't teach you how to teach.
There is nothing more fearful than the first time you stand in front of your first group of OW students. When you've been learning your "Students" have been competent divers. They get the skill wrong, you correct, they do it properly. In the real world this doesn't happen You can show a skill a number of times to a student, they don't get it - do you have the breadth of experience to come up with another way?
Then we have MSDT - to get there you need to have certified 25 divers. Small number right? That 25 is where you learn to teach, really learn. You also need to be able to teach 5 specialties, so you should have significant experience in each.
Now there will be places happy to take you're money and give you a 7 day DM course (tick box filling, no learning) And then some place will be happy to take more money post IE and give you MSDT, you'll team teach or just be in the water on the qualification dive to nab the cert.
How much do you think you'll have learned, and how good an instructor will you be?
My advice - go somewhere warm, take a DM internship. Spend 3 months diving yourself to death, experience all the different sides of DM'ing, from helping teach, guiding, helping customers gear up and correcting their mistakes and get your own experience and skills up to scratch. You might feel that Pro is not for you, and save yourself money, or you might decide you do want to go pro, and you have something to offer.
Our DM course is 3 months, during that time I ask myself the same question. Would I trust that candidate to guide and take sole responsibility for one on my kids who is newly qualified on a dive. If the answer is no, they're not ready.
One final point. Interview the shops you're interested in, ask questions, get advice from others as to what questions to ask (if you don't know) This is your money, you deserved to be properly taught rather than giving money to "attend" Make sure you're aware of all the additional costs or Professional insurance and annual "membership fees" these can be substantial, and they're annual recurring costs (which increase every step up the ladder you take)