The New Jungle Has Forced Me To STOP Maining it

After the patch 4.20 added the new jungle i have not been able to play the jungle well at all, for the games ive played as a "jungler" i used xin zhao and rengar....i used to use a lot of champions to jungle with and honestly thats almost all i played because everytime i go to lane i get a counter pick thrown my way, but that has changed after the patch and i have to say im not very happy with it. The jungle is so painful now that xin has sustain issues and rengar is almost dying after 1 maybe 2 jungle camps and i thought the season four jungle was just fine. i understand that season 5 has to "spice" it up but at what cost, i dont want to have to play or just to have a good time in the jungle and i believe that the jungle should be scaled down damage wise or maybe even reverted back to season 4's jungle, i realize that people would argue that season 4's jungle was not as impactful to the team but how can a jungler have and impact to help if theyre constanly backing to get health or cant clear some camps....i get that no you arent facing a lane oppenent and need some challenge in the jungle but still RIP jungle