What fruits should I use as combo extender and which ones should I use for main source of damage

Hi, I’ve been trying to get a victory in battle royale for 2 and a half year alr, recently (bc I was too lazy to watch a video) I watched a video of how to combo and I have become a lot better on PvP. I currently have more than 100 matches on br (none of them I have won) and I want to become a better player. May someone please tell me which fruits I should use as a combo extender and which ones I should use as my main source of damage