Hi Adam
No such thing as a stupid question.
Registering with the Metoffice is a good idea and speaking personally I find it quite useful for 'on the day' info but not too reliable for forecasting.
The weather is no doubt the greatest thing of interest for the average VFR PPL so you'll do right to treat it with the utmost respect.
Form 215 is very useful to see the general weather pattern for the day and always have a look at the METARS of nearby airfields if your planned destination does not have one.Do the same for your home airfield for your planned return time.
Don't be afraid to ask more experienced pilots their opinion as I am sure you know,pilots are full of them
Try to get familiar with conditions that lead to fog as that can really catch you out.
Hopefully,the winter can give some very clear and stable flying conditions that you will be able to take advantage of.
MM