Make sure nobody likes your blog.
Make sure nobody comments on your blog.
Make sure nobody reads your blog.
Even if you manage to do every single thing from the list above (which is virtually impossible) it will still be very hard for you to quit blogging. Your final chance to quit blogging will increase if you have only one blog with few posts. Only one in few hundreds of thousands of bloggers are lucky enough to have only one blog with “hello world” single post. If you are that lucky one, you have 50-50 percent chance to quit blogging.
Don't even think about it, just do it, while you can!
Blogging can bring great benefits if used properly. You can make money online with blogging, you can meet people from around the world with similar interests, you can learn new skills and make your life better. On the other hand, blogging can become useless habit that wastes your precious time. If this happens, like with every bad habit, turn away and quit blogging - if you can.
