Mahirap ba ang stem math?

I WANT to be a dentist, I don't see myself elsewhere in the future. Pero being a dentist requires I pick up stem diba? Naririnig ko na kapag obob ka sa math tas pipiliin mo stem walang mangyayari, true ba? G10 ako currently and nahihirapan na ako sa basic geometry, ung circles and angles arcs kineme, ibang strand nalang ba kunin ko? Is there another way to ensure I become a dentist in the future? I don't like taking risks eh, esp if di ako super familiar with them like stem