Words of advice:
Stop being a bitch and just move forward.
I started in a striking-based martial art and at the time my mindset was all about stand-fighting. A few years later I found grappling, immediatly fell head over heels and I never went back to striking. I would definitly say my mindset has completely done a 180 towards grappling.
Unrelated, over the years I've seen many people come and go with respect to training. This was observed with those who were primarily grapplers or primarily kickboxers or a TMAer or some mix, whatever. With that observation and now that you bring up this concept of 'mindset', perhaps the mindset doesn't dictate what you train but rather it dictates whether you train in the first place, everyday, week after week, year after year.
An interesting topic to think about nonetheless; glad to see YMAS isnt't completly full of hijinks.
Here is my take on the grapple/strike thing
In a striking situation one can maintain distance from your opponant. Move in, strike, move out
In a grappling situation you have to get up close and personal, or you're not doing it right
To most people who don't grapple this invasion of personal space is quite uncomfotable
My meager judo experiance has encouraged me to get in my opponants space while striking, which most pure strikers find disconcerting, at least at my (low) level of striking experiance