First long trip towing - any tips?

Hi everyone, we bought our caravan last year but until recently have only stayed very local so would still consider us as 'new'.

We're going on our first long-ish distance family trip in a couple of weeks so wondered if anyone had any tips on how best to plan out the journey to make it as stress free as possible?

We're travelling from Yorkshire up to Melrose and then on to Grantown on Spey.

Thanks