Pause, sit back, breathe deeply.
Now your relaxed, read the advice, research solutions e.g. the resting bend collar issue, and work out your plan of action.
Write it all down, and cross it off as you go. This is satisfying as you can see progress.
Regarding the brickie. From the picture it looks like what he's done is good work. Unless you have had a major falling out with angry words exchanged, it may be worth eating a little humble pie and asking them to return when needed.