You will never get rich from pvp, unless you’re exceptionally lucky or into some of the more niche forms of it (supercapital hunting/whaling for example)
But you can break even pretty reliably, especially in modern eve. Here’s how I do it. Fly the most cost effective that you can. Don’t bling needlessly. Loot EVERYTHING you kill and use the asset safety trick (external deposit in hostile citadel > asset safety from assets window) to get it to lowsec safely. Once every month or so, or whenever you need isk, run around all the lowsec stations and pull everything out of asset safety, then either haul it to jita yourself or get it JFd in if there’s a large amount.
You can actually make a profit off of roaming between insurance and loot pretty easily, but like I said, it’s probably not gonna make you rich.
Best of luck.