My ds started with tics when he was about 5. They come and go and are extremely varied but at aged 19 now, he still gets them. I was hoping he would have grown out of them tbh but unfortunately not.
I will say it has not hindered him at all. He has always had a great group of friends around him, did well at school and is now in his first year at Uni. They don't seem to notice them.
Sometimes I struggled a LOT! I would video him, tell him to stop and comment on them way too much. I cannot stand repetitive noises anyway, so when he had vocal ones, that was hard. The worst are the blowing out of the nose ones when sometimes bogies come out!!
Nowadays, I never, ever comment. He went through very fragile mental health age 14-15yrs, including taking an overdose. I will always wonder why and sometimes blame myself for making him feel shit about the tics when he was 9! I know I am probably being harsh on myself but for those of you with younger dc's, please, please do your best not to comment. I would go to the loo (still do sometimes) or busy myself in another room when it got too bad. Not always though, that would give the game away to him.
He saw a paed neurologist about aged 14 who said they were just chronic motor tics and because they didn't impact his daily life, he was OK at school etc, there was nothing they could do and he would (hopefully) grow out of them. Still waiting....
He is a closed book tbh and doesn't share his feelings or emotions at all with me so I have no idea of the impact of his tics on him now. He has had girlfriends for years (one 3.5yr relationship and the latest has been nearly a year) who adore him.
I do believe though, that they bothered me more than anyone. Maybe it's because we are their mums and we just want them to be happy and have no issues that it bothers us the most. Who knows?
But good luck with it all, especially those who are struggling.