May i ask you max why you didnt apply for British citizenship ?
It’s just a question without any reason because some people don’t apply for citizenship or only after many and man years and i don’t understand why.
Yes having friends in Canada is an argument but what is your proofs and evidences to prove that ??? Of course you can send pictures as you want.
Generally speaking someone who can ´ives in the uk a developped country and his principal reasons to apply for H&c is just because he dont has friends in UK and he want to live in Caanda with his Canadian friends it’s not a strong case Andy that’s why i advice you to put other things to increase chances..
You sain that your situation in uk without friends and family affected your mental health, did you put any document or letter or article to prove that ??? Can you please share with us all your proofs like articles, letters etc...