If it's easier, it's right.
The easy way is always the right way.
Seek instant gratification.
The hard way is always the wrong way.
Set a timer and practice. Follow those rules. See what happens.
You won't know unless you try.
It's your best shot at a consistent daily practice. I don't know of another way.
(If mistakes while playing music are WAY TOO PAINFUL and make you want to curl up in the corner, or even just hesitation for a quarter of a second, I made How to Make Mistakes for you.)