Why do I doubt? Am I loving enough?

What is the opposite of Fear? Courage, strength, hope....none of them. Love is the answer, I did not know it until I read this book about three months ago. And what is it that we use to describe God, one word that embodies all that He is for us - yes it is Love.
Now I knew both these facts -  the latter for years actually; since my high school when it was drilled that God loves us no matter what. I have been working on my relationship with God for quite sometime now and realized that there was something missing - that it could be better. This morning as I was trying to keep a steady pace on the treadmill my mind was racing through multiple thoughts (nothing new about that!) and then I focused on my current fears in life. I doubted my life in the Summer, my abilities to complete the program, my grades, my weight.... And then it struck me like a thunderbolt. Why am I doubting? Why am I fearful? If I claim to love God then there should not be any of this! I realized that my loving was not good enough - I needed to love with a deeper trust knowing that God loves me so much that he will only give me the best, that I need not fear what the future holds for me, that he has only the best things in store for me. It was such a liberating feeling that it instantly made me cry. I never felt such comfort before. I realise now that all that God asks of me is to trust in His love. I will never be able to have perfect love like his but nothing should stop me from experiencing His.
I resolved to do my best everyday, work hard and trust that all that happens in my life, everyone who enters my life is in fulfillment of the divine mechanism. Looking out for and feeling Gods presence in every moment is the key to staying focused and the next time I doubt or am anxious or tense or fearful I know exactly where I am going wrong!!