in the last 12 months i have seen alot more window cleaners around
Thats a big part.Most even successfull ones struggle with that.I think be bolder than last time not more timid. I bet you did lots wrong, this is your chance to do it better. Read some of ian lancasters back posts.
If you want late life or second chance inspiration google steve jobs and read his story- he wasn't a window cleaner of course, or the old colonel lazy git, didn't work a tap till he was 66, then he started the kentucky chicken chain.