How can I forget about God?

Yesterday I wrote about how amazing my God is but even though I recognize His greatness and majesty, I don't always give Him what He deserves from me. Sometimes I forget about Him.
I wake up each day with the best intentions; I pray as I walk the dog, I marvel at each sunrise which to me is more breathtaking than the previous day, I sing songs of praise and worship on my way into work, and I converse with Him over my morning cup of coffee. Then something unfortunate happens.....I get busy and forget about Him. I forget to feel love and thanksgiving towards Him. I forget to keep Him in my thoughts. I don't reflect my relationship with Him towards others with my actions or with my speech. I forget how great He is and how worthy of my love He is.
This confuses me. Why is loving God so hard? Shouldn't it be easy to love such an awesome God consistently throughout the day and not just when it is convenient for me?
I want so badly to surrender every part of my self to Him. I want His presence to permeate my every moment. I want Him to become bigger in my life and for me to become less. I want to have Him in my thoughts all day long. I want to never forget about Him. I never want to lose my zeal or love for Him. Jesus said the greatest commandment was for us to love God with ALL of our heart, with ALL of our mind, and with ALL of our soul. This is my desire.