Tarantula Sling

Oh boy this is my first time making a Reddit post so sorry if I’m not hip to how this works. I just received my Neon Pink Goliath bird eater and realized I wasn’t fully prepared. She’s about the size of a quarter and I have no idea what to use for a water dish or how to get a heating mat that small for the enclosure. I’ve tried videos and google and I’m just lost. I keep my home at 65 as I always feel very hot and I’m afraid it might complicate keeping her as well.