I've recently bought my first house and am very new to doing DIY. I've just about finished painting and looking to get carpet down asap, however one of the bedrooms has a very squeaky floor. There was laminate on top, and the floor is chipboard. There's a couple of places where the previous owner has cut into the chipboard for access, and it squeaks around there as expected, however also at other joints. I think it's tongue and groove flooring which has been nailed down. I'm wondering whether I will need to replace the floor, or if I can attempt to fix it down? Is it something I can do myself, or will I need to get someone to do it for me? Can provide some photos. Thanks!