To believe or not to believe ?

This is a big question for me.

My understanding is that what can be experienced can only bring the true knowledge.

I feel that I am on a spiritual path which can take me to broader understanding of the Nature and all the things comprising Nature. This will also lead me to the better understanding of humanity and also to self realization of a new God which may be different from external beliefs which I inherited from my religion and society.

Now I have limited time and efforts for meditation, I have limited time and efforts for contemplation, I have limited time and efforts for even the collation of the seemingly right information. I have accrued lot of information by reading books, but I have experienced very little. I have not experienced enough to say anything with certainty. When I try to be sure, I feel that i am applying lot of belief and very little experience of my own.

Now if I stop believing, I will not believe in spirituality, as I have never experienced spirit with my five senses. Also I do not have any other sensory capabilities other than normal five senses.
I will not believe in any God or Nature because, I have not experienced a consistent functioning of God.

If I do not believe, then I am nowhere. I am just a blank page with few lines scribbled on it. My experiences of the physical world does not let me relate with anything metaphysical. Some people say that one must learn from the experience of others. Then what about the self experience? I can learn anything and everything from others, so many knowledgeable people have existed in the world; they have told so many things, but they also talked of realizing by self experience.

I do not have the energy or inclination to become a Buddha. Then do I need to be contended with my half book knowledge, one quarter belief and one quarter experience?

I really do not know.