Online MSc Computer Science Merrimack College

[Pats20]

You're young!  There are so many options for you, it may be cheaper, easier, and faster to get a second BACS degree at TESU.  Then ladder up to a Masters at NYU, UT-Austin, or GT.  This would be my first choice, seriously you will need some time to "learn" computer science anyways, it's not a degree you can progress without spending time on the basics and/or prerequisites.

Another possible option is to take a similar degree than your original post, there are a few Public/State or Research institutions that do not require an undergrad in Compute Science or similar degrees, but will require at least a programming course and math/stats course as prerequisites for entry.  Others may require a bridge set of courses as they vary in conditional acceptance of applicants.  Some of these state universities are globally ranked, not just nationally, and can get the TESU + Masters for under $20K USD.

As a "backup option", you're in the province of Ontario, I would skip the schools you mentioned earlier in Alberta/BC, as they'll be less recognized than in province institutions.  WLU (Wilfrid Laurier) is in your own back yard, they have both a butt-in-seat Masters in Applied Computer Science I mentioned AND an ONLINE option for Masters in Computer Science, the caveat is they DO require a bridge set of courses.  Total cost is $21K USD/$28K CDN for this Masters

Yes, being in your twenties you have plenty of time to learn cs. I dont think you can make a bad decision other than just not doing it at all. Good luck to you on your new adventure.