Not flying today is a good decision, its very blustery here in south Essex. But you really do need to fly in conditions that are not 100% perfect, otherwise you will never fly at all.
The trick is to creep up on your limits and slowly push them back. If you think 'this is getting a bit dodgy', then you know that you have reached your limit. You will probably find yourself pushing your limits without even realising that you are doing it, the more you fly, the more experience you gain.
Today, you made a good choice.