Editing a few English paragraph?

My current plans; I will study mathematics in diverse area until I go to college and I will participate in The Math Circle. In Spring, I will attend Arctic Number Theory School in Finland. In summer, I am planning to participate in summer math camp or research program. In fall, I will take three or four courses at Harvard Extension School and participate in Pomona College / University of Wisconsin Mathematical Talent Search. In winter, hopefully participate in semester research program. And finally, I need to be focus and prepare for college admission.