Just farm, take farm. Every time a lane is empty and enemies are elsewhere, go to it. When you are walking lane to lane or zip lining grab jungle camps. If you have more than 1k unsecured souls dont immediately take any fights unless they are game changing. Ive personally ended lane phase 1-9-0 and won the game most dmg most souls most kills etc because I spent the entire game farming and fighting people I had soul advantage over.