It can be frustrating sending lots of traffic and nobody is spending straight away, Just keep pushing it mate, you seem to have a lot of traffic, sooner or later it will convert, could even take months until they convert.
Check out Tayax journey threads, he does great with CB and has some nice info he's shared.
I don't push that much now but still get the odd regs here and there. All the money spent is from regs I got in 2017-2018, so now its just nice passive income extra change.
(pic to show you not to get discouraged

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