I also don't have a CS major but work as a developer. I can attest to the OP's urge of wanting to enroll in CS in hopes that once I finish and get another job,

I also don't have a CS major but work as a developer. I can attest to the OP's urge of wanting to enroll in CS in hopes that once I finish and get another job, I won't feel as overwhelmed as I did before. While I'm sure going back to university and studying will provide me with some benefits to whatever my subsequent employment would be, there's probably drawbacks too. Namely, the sacrifice of real-world job experience for more theoretical experience. The other thing is, companies typically try and maximize the amount of work they get out of employees. Nothing sinister about that, but it's important to recognize that's how companies function. So I think the OP should ask him/herself if their overwhelmed feeling is due to a lack of theoretical understanding, or simply due to the sheer workload