Some excerpts that caught my mind:
What Simons has done is turn the focus inwards. He has leaned into his support team, which is extensive. He has a personal trainer, a performance trainer (with whom he analyses video footage), a nutritionist, a chef. He even has a mindset coach, who has been especially useful.
Simons is heavily into meditation and visualisation work. He reads a lot, with philosophy a favourite area. He often uploads motivational slogans to his Instagram account. He fell back on all of this. Meanwhile, his personal situation has become more settled.