Yes and yes.

But there are consequences to the opinion you choose. If you choose to believe you have no responsibility for your situation, odds are pretty good you'll have a life of mediocrity and failure.

> "Whatsoever a man is, is due to his make, and to the influences brought to bear upon it by his heredities, his habitat, his associations. He is moved, directed, commanded, by exterior influences—solely. He originates nothing, not even a thought."

Not buying that.

So, you are not changing your opinion. But you could if you wanted to.

You could change your mind about something that you believe to be false, without any outside influence, through pure will.

>If you choose to believe you have no responsibility for your situation, odds are pretty good you'll have a life of mediocrity and failure.

The link is to a well known essay by Samuel Langhorne Clemens, mediocrity and failure. It goes into the consequences of such beliefs at great length.

It makes me think of "The Secret" / Law of Attraction, or similar cults, though I have not actually been a target of proselytizing for those. More people than I'd realized are into it.