Shouldn't I not?

Why am I so indecisive? Is it that I if I don't commit to a decision, I can't be blamed for the outcome? Surely there comes a point where one realises that they are no longer a child and are accountable for their own actions( they being me..). Not only that, but I am the sole owner of my life and can choose not to include anyone else, so surely the choice can be made by no one other than me.