Graphic Design can be a lot of fun, but also incredibly stressful when we allow a lot of the nuances to drag us down and allow our focus to slip.
1. Your First Idea
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Your first idea isn't usually your best.
This can apply for the majority of things in life, but for design especially when you're trying to communicate a message well, don't steam ahead with your first idea.
I'm not saying you can't come back to it - just make sure you're completely out of other ideas before you do.