I didn't follow any kind of prescribed path, I started in call centre work, moved up through various team leader roles until I ended up in IT Service Management, that got me involved in ISO20000 which is all about Information Technology System Governance, that expanded into ISO27001 which is about Information Security and continued to expand. I now look after our Global compliance program which covers ISOs 27001, 9001, 14001 & 22301, SOC2 Type2, PCI, FedRamp, StateRamp & CyberEssentials.
I have no formal qualifications, all self taught.
If Data protection/privacy is your thing then look at CIPP/E
If you would prefer more of an auditor function then you can do ISO auditor or implementer courses, there are ISO frameworks for all kinds of industries so if you have particular sector experience then it's worth going down a specific route, for example 9001 is about quality management, 27701 is about privacy, 14001 is about environmental sustainability, but there are ISOs for lab work, mechanical engineering....
Once you have a good understanding of the frameworks the kinds of roles you'd be looking at for entry level are GRC analyst, Compliance Analyst, GRC auditor and a general idea of Entry Level salary is around the £35k mark.