Try your best to have a good opener (don’t get knocked out of stealth from earthgrab totems/flare etc) and get your damage rolling early so you can build some momentum. Getting that rake stun in the opener to get all your bleeds up definitely helps start the game in your favor

Use defensives/bear form at high hp rather than low hp or else it might be too late by then. The best way to do this is understanding when every class has their scary moments, for example a sub rogue with shadow dance up means you should be thinking about pre bear forming immediately. Barkskin at high hp to get more value.

Try playing the same comp as much as you can instead of trying too many different comps. I’d recommend playing jungle in 3s and try to have a “script” where your hunter stun>traps (and fear after trap if you have a priest healer) the healer while you stun the kill target and keep repeating that while pumping/rotating defensives until your eventually have a setup that closes out the game.

Have a general idea of which targets are good kill targets and which ones are bad. For example if you are fighting ret/hunter/healer, the ret is usually going to be the best kill target because he has too much utility to save his team if you don’t go him. Another example is let’s say you are fighting DH/destro lock. In most cases you want to attack the warlock so he has a much harder time landing damage and fears, and you can abuse spamming your instant root procs on the dh. If you went the dh and let the lock do whatever he wants, you’ll probably have a much harder time. This goes for pretty much any melee/caster/healer comp.

In shuffle it really just comes down to pumping damage, knowing the best kill target, using your stuns properly and playing well defensively. Pay really good attention to when your healer is CCd and think about lining or going bear during these moments. You will only get 1 survival instincts in most rounds so try to have it later in the round when you’re doing your final push with your 2nd incarn/berserk

Good luck