To wish I could find the words to tell my brother I'm so proud of him.

[LivinLaVidaLoki]

DB is a few years older than me.
When we were kids he was always in trouble, always labelled as the bad kid. He left school with nothing but a bad reputation.
Everyone thought he'd never amount to anything.
Now, after working up from nothing he has a successful multi million pound business, a beautiful family and such a lovely life.
We grew up in a house where no one really did "mushy stuff" so I find it quite hard to express my feelings sometimes.
Since having ds I do find it so much easier and I would love to tell him how proud I am of him bit for some reason it feels so hard.

Could you write it to him? In a card or an email?

Just tell him youre so proud to be his sister and give him a hug, he'll be embarrassed but pleased, I guarantee it.

Tell him. Life is too short and cruel. One day you won't get the chance to say what you need to say.
Do it.

Why not find/make a card with a pic that means something to you (a TV show or cartoon from when you were kids) and a message like 'you're fucking awesome, bro! 😁' or something like that?

Exactly what @SmileAndNod said

I second writing it. He doesn't need to feel embarrassed reading it while you're in front of him, but it will mean a lot.

I'd also say why you're proud or think he's amazing, be specific. Cards which just say 'you're great' don't mean as much as those which say why. You can say exactly what you've said here, literally copy it with you instead of he!

A card is your friend lass.

My sister sent me some beautiful words last year. Her card remains on the mantelpiece and makes me smile.

As an aside, very well done your brother

Just tell him. No mushy stuff here either. But I’ve just finished a gruelling college course and moved house as a single parent with three kids and I have MH issues to go to Uni this September. I received a card from my very unmushy and very different sibling with a beautiful message inside that they wrote and it’s now hanging in a frame on the wall of my study. I’ll keep it forever.

How about writing it in a birthday card or Xmas card? Or something anniversary-ish, like 30 years since he left school or something, a child's birthday, wedding anniversary if he's married. Sure you could find a round number of something.

I just recently sent cards to my two friends to tell them how much their friendship meant to me. It was all gushy and I told them both that I love them to bits; not something I could have said to their faces.

Do it, send him a card.

As stated above you don't know if you will still have the opportunity. My friend died very suddenly and unexpectedly of sepsis. Complete shock, thought she just had a chest infection. Within 24 hours she was dead. She wasn't even 40.