In lane, it's much easier when I was a top learner, I used to have a note with 30 points that I needed to improve on but now I feel like I'm Ganking, farming, pressuring the map, (that's what i'm seeing pros do on stream) but my laners seem to start innovating when they feel like they have a lead
or mybe jungle isnt the role that i was made for.... after a alomost a year of being stuck in silver 5 !
Honestly its a hard role but great for ranking up quickly if you have some idea. I am still really trying to learn it as well. Like I got through silver pretty easily playing it and would probably play jungle again if I wanted to rank another account through bronze/silver quickly but currently struggling in mid-low gold at it. There are videos out there on how to jungle and what to prioritize. The video I saw was like jungling in diamond or something and has great information but was really overwhelming for me. I basically got stuck with just doing normal jungle routes and now junglers starting to change routes and counter jungle or gank sooner than I am used to and it really throws me off.
So although I can't really help you with "this is the best possible thing to do while jungling to get challenger" I can give you some basic guidelines that may help you get to gold.
I think playing in silver you almost have to play more selfish to guarantee wins. The best part of jungling is you have a lot of control over objectives.
Important thing for jungle are.
I put Farming at top because I feel farming is lost on a lot of silver junglers. Ganking is great but if its all you do you are going to fall behind in gold and levels. So I would say clear as many camps as you can and try and watch for good gank opportunities (enemy pushed to your turret, enemy low, you have a lot of cc, you see enemy jungler coming and can join for a counter gank,etc.). But when your not focusing on taking an objective such as dragon or covering a lane for one of your laners who had to back when you should be farming.
Covering lanes is huge because you get some cs and also deny the enemy killing a turret. I feel silver players get too caught up in chasing kills or joining fights they don't need to be a part of rather than just pushing a lane. So a lot of times I get ahead by just covering and pushing mid lane while both mids wander bot for some long drawn out dumb fight. Its a judgement call but honestly always be farming if your not doing the other 3 things. And since covering lanes generally means farm really you are always farming unless going to gank or going for an objective.
But basically jungle in silver pretty simple once you break it down. Do large clears, know when your champ is first strong at ganking, cover lanes, always have your eyes on the map for possible gank or counter gank opportunities, but above the other things make sure you are always clearing camps when you can.
As far as dragon/baron one thing to keep in mind as a jungler is when they spawn. You don't want to show your up top pushing when dragon spawns. The enemy team can run down and grab it without worrying about you smite stealing it. Same with baron late game. Don't be caught solo pushing bot while enemy all mia. Pretty much free baron for them.
Your mistakes in the jungle are your inefficiencies.
What are you giving up by ganking? Is your laner fed, or is the enemy? Who has the advantage, and how much? Is the enemy jungler around?
What are you giving up by farming? Are your lanes suffering? Can you help force an objective instead? Would you end up behind if you don't? Is your jungler a decent clearer?
What are you giving up by taking objectives? How much farm are you missing out? Are you likely to die? Is another objective more important?
This magnitude of each of these varies from jungler to jungler, but efficiency is one of the best ways to improve your jungling.
The best advice I can give is learn to be a selfish jungler first. Try to get into positions where you will be the leading influence on your team. Power farm, hold lanes, only gank if its a free flash/kill or none of the camps are currently up.
After you start getting gold leads each game in that manner, start spreading the wealth to your team. You'll feel dickish at first, but consciously maxing your gold income is the best way to weed out inefficiencies. After that, you can make better judgements of how much you're losing when you aren't farming, and eventually taking objectives/ganking when its not wasteful or too risky will become a natural process.
Dukues hit on a lot of points.
As a jungler you also should be aware of kiting camps and going "non-traditional routes" so that you don't get cheesed at one of your games.
in low elo, vision helps more than the damage
or 
)I find it interesting that you have pretty high KDAs on your champions but pretty low win rates. Probably means you aren't pushing your leads hard enough to close out a game. I feel a lot of silver players will point to their KDAs as an indicator of player strength, but I have a tendency to look at win rates.
Edit: Also kiting the early camps is pretty important to remain healthy in the jungle.
