Eventually, you're going to have to effectively organize those ideas, and knowing how to write good paragraphs can help you do that. Below are some tips to bear in mind regarding paragraph construction. Once you've nailed down your topic sentence, spend the rest of the paragraph developing points related to that sentence only.
Good paragraphs focus on only one point apiece.
Use transition words and phrases in between paragraphs and within them to help guide your reader and connect your ideas. See page 197 in the Scott, Foresman Handbook for Writers for a more complete listing of possible transitions. For example, if you want to build up to something, save the most important information for last, and get the smaller, less important information out of the way first.