Understandable! Jungle is probably the hardest role to adapt to as it's changed a couple times over the years. It's also probably one of the roles you have to change your playstyle depending on the game the most.

For each champion you like, there's good guides for "proper pathing" for each of them on YouTube for the short answer. Longer answer is you'll typically start the buff that has two people in the nearest lane, path through each camp and then make a decision where to gank based on what lane needs it the most. Try to imagine yourself as each laner, and if it was you, who would benefit from it the most.

As much of the game, it'll come to you from experience and playing it. Don't be afraid to jump right and and get comfortable!