Am I math SAT doomed? ?

Ok let's just say that freshman year math was filled with me not caring about algebra at all. I probably should have. As a result of this, I was not put into honors geometry for sophomore year. I feel like I have essentially doomed myself because I am not getting the in depth knowledge of both maths needed for the SATs (I heard they base it on Alg I, II, and Geometry). Is there any way I can kind of go more in depth outside of the classroom? How? Or am I essentially doomed?