Leaving aside Peterson's political views (which are crypto-fascist even if he is a huge coward and backpedals profusely the instant someone calls him out for it), he's not the right kind of person to help a professional athlete. He was/is addicted to prescription drugs and had to go to a dodgy clinic in Russia to be put in a coma to avoid the withdrawal symptoms. He advocates a wacky all steak diet based on nothing but woowoo nonsense and bro-science. Most importantly he is a thin skinned manchild who constantly plays the victims has a meltdown if literally anyone says anything negative about him on twitter, despite being more than willing to call people fat and ugly completely unprovoked because they appeared on the cover of a magazine. Jorp's ability as a psychologist is pretty questionable as well as he's obsessed with Jungian archetypes and the big five theory of personality traits which is basically just astrology. He's basically a right wing version of Noam Chomsky in that the only reason most people have heard of him are because of his political views,except he didn't actually do any important work in his field like Chomsky did in linguistics.
I have no idea why they met, but Jorp is getting a lot more out of it than Ronaldo is. That instagram post is probably just Ronaldo endorsing Jorp's political ideas. Jorp's practical advice is likely to be worthless as he obviously has no idea how to lead a decent, fulfilling life and improve himself, and Ronaldo already has an entire staff to keep his house impeccably clean and tidy.