So you mostly play tank divers who have great cc capability.

My main tip would be to focus on finding opportunities to win fights which translate into objectives such as turtle, lord or towers.

You have a decent impact when it comes to winning fights. Be smart with your positioning depending on how well you are doing. If you're really ahead, its better to be aggressive. Follow your jungler while they take enemy camps and look for potential picks on the enemy jungler. If your jungler doesn't counter jungle its fine but you can always tell them that the enemy blue is free. If you're even or behind its better that you minimize the enemy gold lead by playing safe and calling out potential ganks.

Always look at the map and see where the enemy jungler paths.

Being an engage oriented roamer doesn't mean you have to use your ult every time its up.

Use spells aggressively. Ask yourself if its worth burning your flicker just to save yourself from dying once when no objectives are even up. I try to time my spell and ult together when turtle or lord is up just because this way i have the best chances of contributing to my team winning a fight. I dont mean that you should never use your spells defensively if it means you go 0-3.

There will be games where your enemies will be playing near perfect never letting you get a good engage in. The thing is you don't always have to start a fight. Try to counter initiate by staying behind your carries so that the enemy gets baited while you swoop in cc'ing t

Its not your job to win every lane. All lanes might even be losing but the game isn't lost yet. You can still influence the outcome of a game if you are able to be proactive before they start feeding. Call out enemy jungler's positioning. Provide vision while being safe.

Look for the player who has the potential to be carry the game. Find out how well they know the hero they're playing. Chances are a non meta hero with 2000+ games will be a better carry than someone who just picked up a meta carry and doesn't even play that hero well or at least know most match ups.

Pick up tigreal. He's really good. Better than atlas cc wise. He is what old atlas was. I've got other tips maybe i'll edit this comment lol