I am sorry about the extremely late reply to everyone, I was having some personal problems. But anyway, I think the problem was with a mod like jim_uk said. I narrowed it down to the Run The Lucky 38 mod and the game ran a bit better, but it still would crash very frequently. The save that I was using had every single item in the entire game in my characters inventory, so I emptied it out somewhere and took only a few items and now it seems that it doesn't crash as often. By that I mean it will crash let's say... 30 minutes to an hour of playing, but I think that's normal. So, thank you everyone for your help, I can now play the game properly again.