Is there a way to stop getting an email everytime I log in?
Yes, use the same IP address, device, and browser as you’ve used to log in previously. You only get an email notice if Bitwarden detects a login from a new device.
Always with the same computer and browser.
Do you use a VPN? Or do you frequently change locations (e.g., libraries, internet cafes, home, work, public WiFi hotspots)? This would alter your IP address, making it look like a login from a new device.
IPv6 temporary addresses change every 24 hours typically too, which might also cause it.