Writing custom alias for common bash commands

*[best practices question]* I'm just getting started with unix - and I find some of the common operations e.g. creating symbolic links ln -s or renaming files mv unintuitive. I am debating whether to define my own aliases e.g. rename, symlink instead. **Is this a bad idea? why (not)?** --- **Note:** I'm not doing sysadmin stuff, and am just using the unix terminal for productivity on my own personal computer. **Clarification:** By this I mean defining my own syntax for *any* unintuitive built in bash command - such that I can understand them better - but it would be exclusive to machines I control (access to my aliases)