Tips for jungle?

keep an eye on the map so u see where to gank and with the right jungle counter juggling is very effective

every champ is good if you can play him
all champs can carry so you have to choose your best

Pro Tip #36.7: Use teemo and your skill will increase

Kai'sa is a great choice for this meta , You should definitely play

Watch twitch streams of good junglers. I would reccemend also buying skins as you do get free elo out of that and donating to streamers so they pay attention to you!! Jk just practise and get gud m8.

Play Kha'zix next time if u want to step up on jgl

My advice is very strange, but still. Immediately lock the chat as soon as you blame it. IMMEDIATELY. And you will play well.

Take champ with are or multiple target damage and start from chickens (no help needed so bot or top can focus on farm)

Play something you enjoy.

If you don't like playing a champion it will make you tilted when you actually are losing a game making it harder for you to cumback.

Map awareness is important for jungle. Also you need take important decisions and try not to do mistakes that can cost defeat.