I have two. My biggest piece of advice is to be explicitly, crystal clear when you communicate with your superiors. There are people who think they know what they want, but don't, and there are people who do know what they want but have no idea how to communicate that to you because they know nothing about design. Be patient, be clear, pick their brains a bit. Be willing to compromise on your vision for a design, because they very well may not have the same vision in mind. Second is a workflow thing. I know some people can just tap into their flow-state and go nuts, but for people like me who get burnt out, for whatever reason- boredom, amount of focus needed, lack of morale, feeling like ____ isn't a priority, whatever -take this advice. TAKE. BREAKS. It sounds so counter intuitive to say, but the best thing I ever did for my ability to work effectively was to stop working. The moment you feel like you're just slogging through the mud and dragging yourself through work, stop. Take a few, heck take 30 if you can, and do literally anything else. When you get back to it, you'll have the energy to grind it out again. It made such a huge difference for me. Hope this helps you.