Hi Jeanette,
I am Sumit, an Independent Advisor here to assist you.
Right-click the volume icon on the taskbar and select Sounds.
Click the recording tab.
Right-click the mic and choose properties.
On the listen tab, make sure Listen to this device is unchecked. If not, uncheck it and click OK.
For fixing other problems, send the screenshot of all 4 tabs and post it in the next reply. 4 tabs are General, listen, levels, advanced.