hello amazon forum, this might sound a bit stupid, but can I change Alexa,s name,
Yes, probably, but it's unclear what, exactly, you're trying to do. Do you want to change the wake word or do you want to change the name of your Echo device?
You'll find the instructions for both in the Help section of the Amazon website.
Here's the link to changing the name of the device: https://smile.amazon.co.uk/gp/help/customer/display.html?nodeId=GSH36WER6NKGTFXS
You can change the Wake word using the Alexa app.