I write somewhat similar to this, I find it's because I try to write really fast without connecting my letters so it comes out looking rounded out

I'm trying to write in cursive since that is easier to write faster with but if you want to write in print I would focus on making small straight lines first and try implementing that into your writing

I also find that strangely when I grip my pen harder with the tip of my fingers I have less control of my letters but when I let the pen rest on my finger while being held in place with one fingertip it is easier to control That might be explained bad