Take some responsibility for starters, you are blaming it on being unclear, blaming it on genetics, asking people to spoon feed you. I'm not saying it to be mean, you need to take responsibility to make any significant change. You can educate yourself and you are not at a point where genetics matter much.
If you don't have a specific goal then you need to find some activity you enjoy and do it. Just move more and learn a bit about nutrition and that's all that matter for general health. Enjoying it will make it easier to stick to. If you want to be less twig shaped then look up ice cream fitness 5x5 and go to a gym.