Confess
Confess. Confess when U love like someone, confess when U love someone, confess when U admire someone. No harm done if they don't reciprocate, your feelings belong to U only. Unlimited upside if they do reciprocate. Ask people out to play. Life feels rich when U play the Infinite Game with players U like.
If someone somehow harms U your confession, then better to learn their character earlier than later. Most people receive this information with a good deal of grace and care, and U would do well to feel grateful for it.