When you have a long path in the prompt, only few characters could be left to write the command before going on the next line.

With this prompt instead, the command starts from a new line regardless of the path length.

Try it pasting this in a terminal

export PS1="┌──(\u@\h)-[\[\w\]]     
└─\$ "

Make it permanent with

nano ~/.bashrc

adding at the end of the file

PS1="┌──(\u@\h)-[\[\w\]]     
└─\$ "

(I don't care about colors)