It all takes time, mental energy, etc.
Different environments require different tradeoffs. The vast majority of startups will die before their systems engineering becomes a problem.
Constant firefighting because you engineered a pile of shit also takes time and mental energy.
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Only if you let it. None of that is your problem - just consume the task queue.
Unless of course you're in a leadership role, in which case it's going to be priority #1,000 in 99.9% of cases.