Getting the flu vaccine does help prevent the flu virus from infecting you.
If you get the flu vaccine soon enough then you may never get the flu in the first place and if you do possibly get the flu then having the flu vaccine can help you recover quicker and make you not feel as sick.
The flu vaccine is a good way to protect both yourself as well as other people around you.
I've gotten the flu vaccine and most times I never get the flu and in the rare times I did get the flu virus a few times I recovered from the flu much quicker.
So it's worth it to get the flu vaccine so that you don't get sick or not as severely sick with the flu and it reduces your risk of developing more other serious health issues from the flu.
The flu vaccine also reduces your risk of hospitalization as well.
I highly recommend getting the flu virus to prevent the spread of the flu and possibly prevent yourself from getting the flu.