Low-fi wireframes doesn’t help me to structure my idea about web design. Can anyone tell me how to solve this?

I am new to web design or you can call UX design. I have gone through many tutorials, books, courses and other article related stuff. Everything helped me to structure my journey on this sector.

The thing that stroked my brain and I haven't got any answers yet is how people get a brief idea about web designing through low-fi wireframes? I tried it myself by using pen and paper. But when I design something, it turns out to be more messy and not exactly what I created in my mind. I can never relate to what I think and what I drew on paper.

These low-fi wireframes aren't just developing my creative mind. Instead, they are just a big question on how these should be laid on paper so that I can have a clear visual of what I need in that particular site.

I have found out that displaying high fi- wireframes with the help of some monochromatic colors on design softwares have helped me in structuring what I wanted in the site. Do these low-fi wireframes really useful in getting a basic principle of design format? Or do I need to treat my mind in a way that fits the basic design principles?

I just don't understand how people can form a good idea on low-fi wireframes to be visually undertaken on high fi wireframe!

Need a little bit of boost on this!