This is the problem with these threads, it does cause anxiety for some. Please try not to worry.
Generally with yellow warnings I personally just build in extra time into travel, tidy the garden if necessary and keep an eye on twitter accounts.
When warnings become amber, I start to consider if I really do need to do that activity and if I do, how can I mitigate any risk (looking at route changes, whether I can do things from home, or aim to travel outside the warning times.)
During a red warning (I've only had one) I cancel any plans.