I think the general idea is to analyse backwards as far as you can go, to ensure you are misinterpreting the count you are basing yours on.
I suggest you look at
Technical Analysis by Lara Iriarte CMT, where she goes through and does a EW count for various Crypto junk and it is probably one of the best tutorials on the MW EW tooling you can watch right now. She uses MW to do her EW counts and in that video she is doing it live. I believe there is one more earlier video around this time period which also illustrates it quite well.