I've been in tech 20yr now without a degree (or even good school results) and this sometimes gets picked up during interviews (in a positive way) because it's less common.

First job was 1st line tech support and moved up the Ops IC ladder ever since.

Still to this day tech is one of the few industries where you can go far (and be financially rewarded) despite lack of academic background.

Totally possible. I did it too. Hung around too long in the same position, though. Now I'm a middle-aged and unemployed Server Admin. The outlook is not great. Don't do that.

If you're just starting out, IT Technician jobs are a good place to start. Replace some RAM, Install printer drivers etc.

The rest is up to you.

I don't have post-secondary education, but I have always enjoyed learning new things and mastering interesting concepts and challenges.

Technology fits my predisposition just fine. It's always changing, so I'm always learning.

I started out by making a website for a girlfriend's business 25 years ago, enjoyed it, and just kept on going.

Nowadays I have worked at on important projects and products for some of the most well known companies pushing the boundaries of technology forward.

It turns out that soft kills are extremely important, and self mastery is a powerful skill. As powerful in some cases as knowing how to twiddle bits or predict the results of a left-outer SQL join.

Learning how to enjoy learning, and how to work effectively alone and with others cannot be replaced by a diploma on the wall. The diploma may serve as evidence that one has been tested and proved to have the qualities necessary to acquire the diploma, but absence of the diploma is not proof of the absence of those qualities.

Develop yourself. You will be rewarded.