Is it Tryhard or try hard?

A person who tries very hard ; (in later use usually) a person regarded as trying too hard to achieve something, especially popularity or acceptance.

But working too hard can actually have a negative impact on your career and well-being , a new study finds. Researchers found that working extra hard has no positive effect on you getting ahead in your career and can, in fact, backfire.

or try -hard a person who participates in a game or other activity with too much enthusiasm, emotion, effort, or commitment: These tryhards need to take a moment, take a breath, and chill out.