Its not very hard just farm until you have your core build and just go for a few 100% secured kills. Take the second blue and try to get drake control asap ( you are not
strong enough to do it at lvl 5 now).
Udyr is propably the easiest jungler now together with WW

You dont want to know much from your team early. Maybe call it for some drakes or for pull the gromp but never gank to much u will get rekkt early if u max r first.
If all lanes lose try to get the lane with the most snowball potential to carry the early so you can farm and lead the team to victory.
If someone flames you dont flame back just mute him. Thats what I usually do. :D

Pros +
+Scales well into late game
+Maybe the fastest champ in Game
+Variable Build paths

Cons -
-Not the best early game
-Needs blue until finished tryforce
-need his team early