[Canada] Where should I start at 26?

For years since I was a child I've been severely ill. At some point, it felt like studying was pointless because I thought I was for sure going to die. I didn't want to waste my parents money anymore than I felt I was so I made the decision to just stop studying. Fast forward to the present and somehow I've only very recently entered remission and am feeling dumber than ever. I really did think I was going to die for years because of how bad my illness was and how long it went on for. Now I feel like a burden for different reason. My parents are very understanding and want me to go at my own pace, but I feel I should be pushing myself more and shouldn't get comfortable leaning on them like I have for my whole life.

I want to fix my uselessness by getting a career started. However, it feels like all the options I'm looking at have people saying "it's no use. The market is oversaturated, AI is going to take over, it's being offshored, etc, etc". I'm trying to look into careers that won't have me moving around too much since I'm pretty weak from years of illness (I'm trying to work on that too). So far I thought these three careers would be best for me to pursue:

• Accounting or something in Finance • Engineer, probably Computer or Electric • Computer Science, maybe Cyber Security

I've already started working on getting HS prerequisites done for these courses. A lot of them overlap too up until a certain point which is helpful.

Are there any other career paths I should be looking into that require minimal physical effort? Some more stuff about me, I like math, even if I'm not always the best at it, and chemistry. I had fun in an Intro to Computer Science course I took near the start of the year. I enjoy editing videos and books. Drawing is another hobby of mine. I find inputting monthly expenses and income into spreadsheets relaxing and love finding good deals. I enjoy optimizing CC use and bank offers. I also really like organizing things. I don't have my license.