I'm sorry that you are feeling so down. Just don't give up, you'll get there.
What protiens drinks have you tried? In my bariatic surgery class they had us try different protien drinks before hand and I really liked the Body Fortress Whey Isolate powder with almond milk, it has 30g of protien and less than 1g of sugar per scoop. I get the chocolate one. Like cbd, I've tried the fruit flavored Isopure drinks as well and I really like them. Some shops offer sample sizes to try out so you won't waste money.
By the way, that guy at your club meeting is a total jerk.
Best of luck