Ask HN: Getting a Job as a School IT Tech from Nothing? (UK)

I've been putting off sorting my life out for a while, been stuck in a job that's getting nowhere and the stress & workload has been ramping up tremendously in the last year or so, and I regret not focusing on IT in college & uni.

One of the few jobs that seems appealing and doable to me is working as an IT Tech in a school, and there's a part of me that feels like I could get there, but I don't know where to exactly start, or what experience or certs I'll need beforehand.

I know this isn't the usual dev/code stuff that gets posted here a lot, but I'm unsure where else to look. Any advice would be appreciated