G'day Airgirl,
As many of the others have said, we've all felt this way at some stage of our early training, especially when there are delays for whatever reason. These feelings will vanish the very next time you get to go flying. I remember when I was doing my PPL and it seemed like an endless uphill battle and then I'd organise a flight and all would be well again.
Use the downtime wisely, as others have suggested, by getting as many of the ground school subjects out of the way in preparation for the next stage of your journey.
Of course any time you need a pep talk or advice there is always a wealth of friendship and knowledge on these forums.
Sometime in the future conditions such as these you mentioned
either pouring with rain or else a stonking great cross wind
will be encountered regularly, sometimes both at once, and you'll enjoy the challenge.
Good luck with the rest of your training.
Regards,
BH.