Like others I think it would make more sense to continue the path of software dev but as someone with more experience in IT and computer repair you usually want to work with a company.

(Prior to the below steps study THE HELL out of the books and the certification itself and be very confident that you could ace the test and fulfill any position that requires the certification, despite not formally having it)

I find it better to mention your knowledge directly in the resume itself instead of solely work experience and certifications (I got my first job like this, didn't even have a high school diploma or ANY previous work experience, small business give better chances albeit slightly less pay). You can hopefully land at least a beginner job with crappy pay. Once you're on the payroll you can display and demonstrate your knowledge and work ethic. Hopefully your managers may consider a raise, which often requires certification, which is often paid for by the company when considering that promotion. You may need to ask your employer directly for this route (after building trust and a professional relationship of course). If your employer does not appreciate your work, knowledge and ethics, and you continue to be underpaid for the value you provide, you want to begin looking for another place to work.

I was taught this by my teacher in a class named after and exclusively about the CompTIA certification. Oftentimes it's companies that pay for an individuals testing+education which is why it is so damn expensive. These corporations have the kind of cash to throw around like that.

A certification I'm looking towards personally is the IPC soldering certification and there are 20 or so books and usually $200-300 a pop. No way in hell is "some guy" gonna pay all that himself because it almost always involves the company he works for.