I struggled with this as well in school. In elementary we were taught cursive, then in middle school switched curriculum to print, so I ended up with a weird me

I struggled with this as well in school. In elementary we were taught cursive, then in middle school switched curriculum to print, so I ended up with a weird messy print/cursive hybrid. I can thankfully write cursive, for my own notes, but it can be hard to read back for others. I had to make a conscious effort to write my print neatly, only tips I can give is having good reason to write, and using that to take your time and write slowly. Most of my sloppiness in writing came from being too quick and not caring enough. I take weekly classes for a second language, and use my homework as opportunities to write slowly and legibly. Best of luck!