Where/how to record vocals

I currently have a few projects I've polished up and want to put vocals over, however I have no clue how to record vocals through FL. I have a wireless headset and a decent mic I got a while ago for streaming (ended up not enjoying it much and decided to pursue music) however within FL the input/output seem to be linked to each other. Is there any way to change this so I can do vocals through my mic and still hear through the headset??

Along with this are plug-ins required for vocals or should I be able to mix/master them with stock FL??

Finally, in the event I won't be able to record through FL, would exporting and using bandlab be a good alternative?