I'd say it's more direct than you think
Magician with all his tools could mean: exercise in a variety of ways so you don't get bored. Like working out on different machines at the gym or doing different types of things--Zumba one exercise day, swim the next, bike the next. As the Magician is communications, it might be suggesting a motivational person, like a fitness trainer or a great exercise teacher, or even a doctor, as Magician is often a medical man. The Magician is the person who gives you ideas.
The Devil as the best way to go about it...we often are wary of the Devil as he relates to addictions--but you can get "addicted" to exercise where in you look forward to it rather than dread it. Likewise, you can become addicted to green veggies and protein drinks and grain bowls. But there's another way to look at the Devil: ambition. The Devil sets goals for himself--ones with rewards that he very much wants. As Capricorn, he's a patient and persistent mountain climber. When he gets to the top, he enjoys the rewards there. Then he looks up, finds a higher peak and says, "I'm getting to the top of that one!"
So, be ambitious--not all-at-once ambitious, but small ambitious with a small reward at the end. Like "If I reach this goal, I'll treat myself to a new..." Then aim for slightly higher peaks, each with a reward waiting. Kind of the Apple Watch idea. The activity app has "rings" and you set a goal for each (like walk X km a day is one ring, and burn 200 calories a day is another). So, you can look at the watch and see you need to walk a little more if you want to close the "walk" ring. Close all the rings, and the watch congratulates you. Exceed any one goal, and you get a little achievement medal. You increase each goal as desired. Goals, ambitions and rewards can really make a difference.