Qgis OSM and layer projection problem

How do I Reproject points in QGIS?

Quote from video: So it's in a projected coordinate system. And it turns out the other files are also in that utm zone 18n. So basically we can't move forward without making sure this topo profile line is in the

How do I change the coordinate system in QGIS?

Open the layer’s properties by either clicking Layer | Properties, or by right-clicking on the layer in the Layers panel. Choose Properties from the context menu and then choose General tab. If the layer’s CRS is not set, or is incorrect, click Specify to open the CRS Selector window and select the correct CRS.
 

How do I enable fly projection in QGIS?

To enable “on the fly” projection, click on the CRS Status button in the Status Bar along the bottom of the QGIS window:

1. In the dialog that appears, check the box next to Enable ‘on the fly’ CRS transformation.
2. Type the word global into the Filter field.
3. Click on the NSIDC EASE-Grid Global to select it, then click OK .