I don't know what to feel and do anymore

Have you ever felt lost? unknown? or just in nowhere? 'cause that's what I'm feeling right now. Life's been tough and I don't what to do anymore. I keep trying but I still feel lost. I'm unsure of everything, don't even have a dream that I really want to pursue, I feel lost. It feels like I am left behind and nowhere near good, also, I don't feel anything at max or solid emotions anymore (I do feel happy but at the same time I don't feel anything, it feels like I'm lost.), what should I do?