No matter what I set it to, Audacity 3.3.2 ALWAYS defaults to 64kbps! I usually use 128!
Also, how do I change the sample rate? This used to be in a toolbar at the bottom left, but someone stole it! 
Iām also a non-technical numpty!
They moved the Project Rate (sample rate) to Audio Settings. The sample rate (Hz or kHz) is different from the bit rate (kbps).
When you File ā Export ā Export as MP3, you should see the bit rate settings at the bottom of the screen.
Thank you, got it sorted! 
I think!