Looking for professional mentor for Crystal Maiden

I don't know what skill level I am but I have been playing dota since almost 10 years ago, I'm coming back and I want to be a strong and acknowledgeable player. I've been amusing myself in the support role and I got to say that it's a difficult role to play but definitely fun. One of the hardest support for me to pick up is crystal maiden, she's squishy, slow, and difficult to adjust to in items and skills according to the flow of the game. But mad respect, she is one of the best supports in the game and i would definitely like to add her to my hero pool. If any renowned maiden player is willing to to teach me when she's a good pick, how to match her to the flow of the game, and any tips & tricks I should know, I would appreciate it.