New approach ... learn aikido as an addition to what you already know, but give it time to blend into what you already know.
This is the approach I use for people who are having a hard time adapting to Aikido.
It is not so much an adaptation, but the next level you need to advance you training and put to use the knowledge you have gained from other studys.
Cup of knowledge? Some story created while drinking tea, or cupping hands to drink water .... good adage if seen for it's common sense, but too many of us have no sense. The cup is given too much importance when learning to explain Aikido in terms of movements that apply to all martial arts is what is lacking.
Next evolution to being able to explain these movements across the board for all martial arts.
Is that simple enough?
About the boxing, ever notice how it is aimed at the upper body in an attempt to cause submission or knockout? No thumb, or elbows, or kicks to the legs, jujitsu, judo throws, etc, etc,etc
Lots of rules to restrict many types of movements, and techniques, eh?
Same goes for this grappling business too.
That cup needs to travel and get a bit more knowledge, doesn't it/