How far back in time could you go with your skills?

https://aussie.zone/post/26734588

How far back in time could you go with your skills? - Aussie Zone

Basically the title, you need to use the skills you have now and be a productive member of society. I don’t mean go back and show the wheel or try invent germ theory etc. For example I’m a mechanic i think I could go back to the late 1800s and still fix and repair engines and steam engines. Maybe even take that knowledge further back and work on the first industrial machines in the late 1700s but that’s about it.

My computer skills? Not far. My house painting skills? I guess maybe 200 years, but I’m not excited about the prospect of using lead-based paint and wood ladders. As a jazz-trained musician, I guess to the 1940s.

House painting goes back to the 11th century according to this site

https://www.backthenhistory.com/articles/the-history-of-house-paint

The History of House Paint

Artisans have been painting homes since the 11th century and by the 14th century, house painter guilds were developing in England. This marked the beginning of house painting as a profession. However, we know very little about the mixing techniques used at the time, because the guild members kept them

Back Then History
Their knowledge in modern paints and techniques might not be applicable to 11th century technology
How cool! Give me a time machine and some antibiotics and set me up with an English painter’s guild in post-plague 14th century!