It’s easier to do something everyday than it is to do it three times a week.
Make the things you want to do automatic make them part of your routine.
Set the bar low and celebrate showing up. The run will be super hard some days but the fact that you are still doing it everyday is to be celebrated even if you just do a super short/slow run because you are feeling exhausted. Most people wouldn’t have shown up and even done that much.
Showing up everyday will mean some days you will be amazing and others will be not so. It also means you’re better than the you who only did it three times a week and ended up doing it less because it was a choice and choices require discipline.