This was a crap job 20years ago long before the likes of Amazon / Hermes ruined the rates!
I started out doing multi drop for ANC (now Fed Ex) 60-80 drops per day but used to clear well over £300 p/wk after tax & NI (I was employed) and still got to use my van at weekends, 20 years ago!
The hgv trunk drivers were on a lot more money for much less work, took that route and have never looked back.
I'm writing this whilst loading at an Amazon depot (I'm sat in my cab drinking coffee waiting for my trailer to be loaded, all I do is couple up, I don't touch the load whatsoever) I feel sorry for the poor sods like Tony who have the joy of delivering these parcels tomorrow!
Absolute mugs game multi drop these days, I wouldn't advise anybody to do it.