Proofreading in 2025- is it still profitable ?

I am strongly considering taking a Proofreading course and working from home, due to my commitments as a single parent.

I was considering the CIEP course, but after trawling through forums it seems the PTA course is just as valuable.

My question is, how competitive is the market and is it as difficult as people say it is to find work, with no experience?

My uncle has a marketing degree so I guess this could be of help? Also, I have trained in the merchant navy so I thought I could possibly focus on a Maritime “niche”, although my experience is limited.

Any advice would be so greatly appreciated. Thank you 🙏