Excellence is in the current moment. What are you doing now? Do it well. If you’re working on an excel sheet, give it 100% focus to ensure it’s accurate. If you’re talking to a co-worker, give them the attention, respect and acknowledgements that will make them feel valued instead of looking bored and trying to get away from them. If you’re typing an email, give it the necessary attention to ensure it is well written, error free and clear. Every email you send gives an impression about you.
Excellence is not a long term concept. It’s the next 2 minutes.