Very lost

6 months ago I ended my first serious relationship that lasted 3 years. It was very toxic to the point I had to be selfish for once or keep getting hurt by this guy. He's all move on with a new girl, it kinda threw me off completely, and I was depressed for a long ass time. Finally over it, but now idk I'm very lost. I feel like I wouldn't find love again, or get back on track with school, very insecure about me. This big question of "what's next?'' I really don't know what to do, pretty much he was in all my plans but now I gotta make new plans but just me in it