If you examine games for instance, the things you accomplish in-game aren’t that awesome, yet you still have a drive to do them. The point being: you don’t need something epic in order to feel entertained. In Tetris for example, you’re simply stacking bricks — you merely accepted the artificial goal of completing rows.
Do you need prizes for motivation? Clearly not, or else video-games wouldn’t be a thing. Time and energy are invested for arbitrary awards that mean nothing outside the game. It’s like a coloring book: you accept the goal of filling in the blanks and you’re rewarded with the feeling of accomplishment when it’s done.
Even a “to-do list” is a simple means to create the circumstance of accomplishment. In other words, accomplishment is easy. But if you’re a masochist, you’ll use the process as a means of frustrating yourself. For example: you’ll select goals you don’t believe you can reach, or you’ll design criteria that’s nebulous and ever-changing.
So if you’re not feeling accomplished, guess what? You’re a masochist using the mechanism of achievement as a means to torture yourself. STOP THAT! Relax and pick easy, well-defined goals for now. Practice winning for once. Stop teasing yourself with feelings of lack and limitation. Get out there and win!