Modding takes a lot of practice and there’s a lot of techniques to master. Honestly the best thing you can do is a lot of research. I got everything running real smooth aside from neck seams which I need to go back and fix. I actually just bought and modded New Vegas for the first time yesterday. I use mod organizer and highly recommended it. Download some mods for nexus mod launcher and launched fnv via the launcher but when I load my save none of my mods are there they do not work? (by this I mean it is as if the game has no mods none are working).