Before doing that, try the suggestion that GMC gave, which was to create a new, free email account specifically dedicated to LI alerts. Put that new email address in your present LI account (in the My Account button) and then Account Details. That’s where you can add the new email within LI.
With the new email, create a forwarding rule in the new email to forward emails to your regular email. Not sure who you use as an email provider but you can Google the steps to do that: ex. Gmail forwarding rule hotmail forwardig rule, etc.
If you close out and resubscribe, you’d go to the My Account area and then to Subscriptions. Scroll down that page and click Cancel.