A phenomenon of "super savers" has become very popular lately, with financial gurus and consultants motivating people not to buy extra, unnecessary things, like Starbucks coffee, in order to save money for the future.
In our opinion, the only reasonable situation to do this is if you're part of the system and you have your stable monthly salary.
However, if you're "your own boss", you probably shouldn't be bothering yourself with these small savings, but try to figure out how you can increase your income or go somewhere where you can save a lot more of your money by not paying high taxes.
So, sacrifice temporarily, in order to grow in the future.
And buy your Starbucks coffee if you really enjoy it.