Placed latitude and longitude coordinates points in North Pole Azimuthal Equidistant projection in QGIS

I’m new on QGIS and I try to do a map of my plots. To represented my map, I choose to use the Azimuthal Equidistant projection because my plots are distributed between northern Europe and Canada, see here:

for each plots, I have their latitude and longitude points:

Thus, I try to upload the points on QGIS to project on my map, but impossible. I think to have understand that it’s a problem of coordinates system, but I don’t have the cartographic level to well understand. So, I need your help, thanks.

Someone know how I can placed my point (lat/long) in Azimuthal projection?