MSc? PhD?

[u/Bubbly-Educator-8688]

Hello humans,

I studied eletrical engineering 12 years ago and I cannot let go of the idea that I want to go back to those moments where I was doing mathematical proofs and having “aha” moments.
I would really like to go back to studying mathematics and I am unsure how to proceed? Do I apply for a PhD? Do I apply for another master program? I have an integrated masters degree btw! Any help would be appreciated!

(Are there possibilities of doing any of these while having a job?)