Thank you all for the inspiring responses.
To clarify, I wanted to join the military since I was a teenager but I wasn't able to do so in my country of origin due to the political situation plus my family did everything in their power to stop me from doing so, including hiding the training invitation from me (over-concerned parents). In fact, I chose to immigrate to Canada knowing that I won't be too old to join the military, which was the case elsewhere.
Looking back years later, and having tried literally dozens of jobs (now law enforcement), my desire, or even need to become a soldier never went away. It feels like this is my true calling and I'm definitely not looking for a job where I'd suck up to my superiors to advance in ranks but rather a place where going the extra mile would be recognized and rewarded.
Additionally, the system is a bit different where I'm from and one doesn't really get much choice when it comes to the trade - the options are limited and you basically get what they want to give you. Therefore, being flexible comes naturally to me but I also feel it is important to prepare for unpredictable situations in the future and ensure I would have a chance at using the military experience in the civilian sector, should the need arise and I wasn't able to serve my whole life.
So, if I know I'm flexible in choosing a trade - why not choose the one where I would have the opportunity to work harder (and hopefully, smarter) and get that feeling of fulfillment and continuous challenge, self-improvement, and progression rather than getting stuck in a trade where the system doesn't leave room for people who are willing and able to do more?
My experiences will include administration, management, and law enforcement so it's really hard to choose the best trade as I'm aware that even if a trade might appeal to me now, it may also feel completely different in "real life" when actually doing the job.
Following my heart, I'd go for a combat trade such as armour officer however I'm concerned if I get hurt or a health issue arises, will I have a chance at a good civilan job using the military experience.
I also practiced sports skydiving in the past and it would be great to get in a trade where I'd be able to do this for work, however, the possibility for that didn't seem too high based on my research.
Apologies for the extremely long post, the hands kept typing on their own
If someone is actually patient enough to read all this, advice on the trade based on my post would be much appreciated...
All the best