The subconscious mind is a great mystery to be solved. It acts in decision making about one second before we are consciously aware of choices. This does not set back the free will argument. It is an internal issue. We can say the subconsciousness is familiar with the patterns of what we do. So much as it has the ability to choose strawberry milkshakes because strawberry milkshakes have been consumed a lot in the past. This may have the appearance of choosing strawberry milkshakes deterministic. That's quite fine with me. But remember, there are still different flavors of milkshakes to choose from.
In other words, the subconscious mind works in such a way that it is background cosmic radiation. The different waves it projects takes some time to reach its destination. For example, the subconscious mind may be planning a strategy to acquire money. We may not be conscious about getting money, but our subconscious is. In this, we find that it is a secret being kept away from our awareness. It may surface when we want to buy something at the store but don't have enough money to pay for it. So in that moment we realize that I should ask the boss for a pay raise because of my good work ethics. Then we realize that "hmmm, I've been thinking about asking the boss for a pay raise for quite some time now".
With this example, it undercuts our ability to think in such a way that later on in life we could have applied for a better job. Doing the same thing over and over again is on the road to being a determinist. Free will is just an obscure abstraction. To fix this problem we need to do some changes in our everyday lives.
1.) Do things differently. Learn to do new things in our lives.
2.) Get rid of old habits. These old habits may be a hindrance to our health and state of mind.
3.) Get outside and meet new people. This requires starting up a conversation.
Here we can find that we are now on a new path in life. With this, free will becomes our ally. And with free will becoming our ally, we become less predictable. Thus determinism is up against the ropes getting the shit knocked out of it.