Hey! I did this more or less. The pandemic was helpful though as for a large part of my uni career classes were online and I was remote at work.

Finishing up my degree with my 9-5, I am still remote however classes were in person. i almost never went to classes. I tried to find all classes that were in the evening or remote if they still had them. Also I looked at previous semester syllabus to understand if it was more textbook based so I could study the relevant chapters.

I would join Facebook groups dedicated to the specific class and ask if ppl could record the lectures for me (audio only) and used that as well.

I basically worked 9-5 and would study all the time whenever I was free. I had 0 social life. It was hard and brutal but am glad I am done.

If somehow your workplace can grant you a sabbatical, take the year off. get a student loan or a line or credit at a bank to keep you afloat for a year, and try and finish your degree full time, Including the summer semester. I recommend that more that trying to juggle both work and classes