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So, I am sort of at a loss here, I want to cut some of the carbs out of my diet and replace them with fat but I can't think of anyway to do that. The only way that I know how to add fat to a food is cook it in oil or butter. Also, what is considered "low carb" for a day? I can't really see myself eating less than 100g carbs a day; all of which are low glycemic.

I don't think 100 is too bad depending on where you are getting them. I have been asking a lot of questions about fat lately as well, and you could-

Eat higher fat meats/dairy and eggs.

Eat more nuts

Do as you said, cook in oils and butter

Use them to flavor foods (but obviously don't dip bread in olive oil). I myself for instance will take a packet of tuna and pour it on a plate and top it with some olive oil. Throw on some seasoning as well. You could use higher fat condiments like mayo and whatnot too.

All I have for now. Shouldn't be too hard.

100 g is OK for maintenance but if you're trying to get ketogenic you need to reduce further. You may have to look at your fruit and veg selection to avoid those higher in carbs like bananas, apples and squash. Normally these are OK in moderation. Of course grains, potatoes and legumes get cut first. Also you should be only looking at net carbs. Deduct the fibre from your total.

Currently I am bulking, I don't think I am trying to get ketogenic but I'm not quite sure what that is ( a quick search makes it sound like a cutting diet). Roughly all of my carbs come from whole grain bread, grapes, milk (in coffee), and red beans. How would adding peanuts be?

Peanuts are fine. Some may quibble as they are not a true nut. For someone bulking I think 100 g is right on. Try to get some green veg. Spinach and broccoli are good choices.

I wouldnt cook with any type of mono or poly unsaturated oil because they are both unstable at high temperatures. I only use butter for frying, but if you going to cook with an oil, use coconut because it's mostly saturated fats.