ah man, its hard to say. when i eat mushrooms i like to take at least 1/8 but i also like to have some weed to smoke while im tripping... if i had to choose, i would buy the full 1/8 of shrooms... buuuuttt since its your first time shrooming and you dont know how youll handle them, you should eat 2g for $15 and buy 1g of pot. have a nice trip