Take good care of your instrument
You’ve been practicing every day and really making progress towards your goals, but one day during a particularly intense session you break a string (or input jack, or neck…). The problem is you don’t know how to fix it, and so your guitar sits and collects dust and all your skills melt away. It’s a common story, one that happens far too often. Learning some simple maintenance like changing strings, cleaning the neck and a bit of basic wiring can go a long way towards preventing lapses in your practice because of something as simple as a busted string.