An independent or uninhibited person

Independent....

adjective
not influenced or controlled by others in matters of opinion, conduct, etc.; thinking or acting for oneself:
an independent thinker.
not subject to another's authority or jurisdiction; autonomous; free:
an independent businessman.
not influenced by the thought or action of others:
independent research.
not dependent; not depending or contingent upon something else for existence, operation, etc.

noun
an independent person or thing.
a small, privately owned business:
The conglomerates are buying up the independents.

I think for myself, after listening to all arguments and rhetoric.

Uninhibited........


ADJECTIVE
If you describe a person or their behaviour as uninhibited, you mean that they express their opinions and feelings openly, and behave as they want to, without worrying what other people think.
...a commanding and uninhibited entertainer.
The dancing is uninhibited and as frenzied as an aerobics class.
Mason was uninhibited in his questions about Foster's family.
Synonyms: unrestrained, uncontrolled, unchecked, free More Synonyms of uninhibited.

I have my own opinions which weigh heavy on what I decide to do, more than other opinions.