I am often unable to decide upon an opinion, as I know that my knowledge of the subject is incomplete. For example, I am unsure of whether the (as it currently seems to me) few insights that psychology can add to our knowledge of the human mind and human behavior that cannot be found out using reason and individual observations is worth spending my and others’ time and resources on. Another example is my unwillingness to pick a side in the debate about free will, as I know that there are arguments I am not aware of. This inability to decide upon an opinion among many chooses, as I know there might be valid counter-arguments to my view that I do not know of, heavily impacts my life. The psychology example illustrates these consequences well: as I cannot decide on whether psychology is worth studying or not, I feel insecure about taking the big step to starting studying psychology, as it might be the wrong thing to do. My doubting of the very foundations of many opinions, and as in the example of free will, obstructs me from moving on to further conclusions, as I am always stuck at the first step.
My question is therefore: how can I decide between several opinions that each has compelling arguments when I choose which opinion I should advocate and/or support, such as when voting for or against an economic reform or similarly?
Thank you for your help