weaknesses

Don’t get locked into one manner of movement or style of training. See where your second choice leads you.
There's no reason you can’t give yourself every possible advantage - starting right now.
Whatever your experience level, getting in shape remains the same - you need the basics.
Balance and locomotion, lower risk of injury, and quality of breathing - possessing a strong neck has an upside for anyone.
Is there any case for only concentrating on your strong points? I am going to say, “Yes."
Nothing worth having comes easy. To enjoy the benefits of lifting, you need to put in the work first.