Enlarging my first photo

Today i enlarged one of my photos. The first thing i did was make sure there were not any water spots on it so i used photo flow to clean it off. Then i loaded the negatives into the enlarger by putting the negative holder all the was back in the machine and then putting down the head it. Then I turned the light all the way up to focus the image and I used one little tool to see the grains of the image to make sure they were clear. After that i turned the light almost all the way down and made a test strip by exposing different parts of the paper with different amounts of time ranging from three seconds to six seconds. I developed the image and then took it out in t he light to see which would work best. I decided on four seconds and went back and made the actual image the same way as the test strip but without covering parts of it. I developed the image and now its on the drying rack.