Thanks, Andy
The secret of Veroboard is simple: 0.1" graph paper
I'm not sure how easy it is to find these days, but there are websites that can create it for you. I'd guess that a laser print would be better than inkjet, as you'll do a lot of rubbing out as part of the process - you'll see what I mean when you see this example:
https://www.vintage-radio.net/forum/...1&postcount=52
If you haven't see it before, that thread is full of useful tips about Veroboard...