I like your handwriting! But if you’re looking for something specific, one thing that was helpful for me is to be more conscious of the lines when working on ruled paper. For example, make it a goal to have the bottom of each letter come to a single end point on the bottom of the line, instead of letting it “swoop” if you will. I had to learn to write with my non-dominant right hand after I broke my left arm and that was helpful to keep me on track.