When to merge a git commit to master branch?

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Git

I use git occassionally in my projects as a local repository.

1) What I do is to create a new branch for every new change & carry out my work
2) I never merge my commits with the innitial master branch at all
3) I just move back & forth through the branches in-case any change is found faulty
4) By this way, I end up with a whole lot of git branches in my repository

I want to know is this approach the right way to work? Or should I merge every verified commit with the master branch?