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.)