Yes, you can factor these in to a choice.
No, the outcome would be the same regardless.
If you are aware of your instincts and able to control them then yes you have more free will i would think.
Free will is mainly an opinion in itself. If I eat an apple. People may say I did it cause I was a hungry( a necessity) or I might say because I wanted to. It all depends on your perspective. Now that that is established, I will say knowing the reasons why you should or should not do something does make it easier to make a decision ; but you would be a fool to think that people always do the thing that has least resistance.
free will is an illusion