One complaint about the struggles of songwriting is finding the time to do it. All manner of things can rob your ability to focus on your writing, either by design or default. 

I use the term ‘rob’ deliberately, because time is a nonrenewable resource. You can lose it, waste it, or spend it doing something you love - like songwriting. But if the urge to write is strong enough, then time is one of the best investments you can make in your songwriting practice.

I use the term ‘practice’ deliberately too…