OE is something I've dabbled in regularly. At one point was able to hold decent conversations in it but then had a commission to do a job in Japan so dumped most of my OE for Japanese.
Do you remember much of it still?
fragmentary at best. I could probably get by with day to day things but as soon as you start adding anything past that it'd be difficult. I've still got my books for it though. I'd recommend https://www.amazon.co.uk/First-Steps-Old-English-Language/dp/1898281386
it's a very good initial companion.
I just find it fascinating how old English is literally unrecognizable when compared to modern English and how much has changed in the language in just 1000 years. Is there any other languages like this where the older versions are unlike anything like its modern counterpart? I heard old French basically has the same thing where nothing in old French is recognizable compared with modern French.
Apparently there are a lot of the same root words when comparing old and modern English. I love studying the similarities and the etymology of them.https://lrc.la.utexas.edu/eieol/engol