Dont jungle in silver/gold.
If a diamond 2 player cant carry the game due to 4 players constantly being the worst garbage imaginable in botlane/toplane. Put this in perspective I can carry games where im a laning champion with someone trolling and still win the game yet jungling without a super hard carry you lose every time.
This is the normal though im going to lose every placement game due to complete horse shit and then have a 70% win rate through platinum since this is luck of legends. But seriously never jungle in that low of elo because you need an actual team to jungle regardless of how good you are. Unless you are playing like graves but even then its sometimes iffy. Twice now Ive had to just play adc and play toplane because its the easiest to win in those elos.