This tutorial shows you how to troubleshoot and fix a quadcopter that doesn't arm. I will also explain the common problems that prevent a mini quad from arming in Betaflight.
I too am not sure what's going on, but if you want to stick with it we'll keep trying. @HighTechPauper has a point about buying your way out of problems. I was really down on that for a while, and felt like I was "getting bad luck" in the hobby, or even losing faith in the product manufacturers. It's just a lot harder to asses issues when you're just starting out, and a single rig is all you have. One of us would just start swapping parts around and trying things until we could deduce the problem. I recognize that's a lot harder (or impossible) when you've got the minimum viable kit to fly.
The hard part to say is that controller is a bit outdated, and to get a current one would cost around $150 or so. I know it's a lot of scratch, but it's worth it for sure if you have any intention to stick with FPV.
Yeah bought this just to see weather i want to get into fpv my plan was to just try the hobby out with this drone than upgrade the drone or build a new one from scratch but i still have a bit of hope yet and buying new hardware will be the last result