Step 1) Getting into law school is one thing--doing well in law school is something different altogether. The first step in doing well in law school is reading all the homework assigned. Don't read it passively--read it with an acute, analyzing eye as law professors relish calling on underprepared students.
Step 2) The second step in doing well in law school is briefing all the cases that are assigned. This takes a long time but is essential practice. A concise brief includes the following necessary elements: Issue, Rule, Analysis, Conclusion.
Step 3) The third step in doing well in law school is studying for your tests at least a month ahead of time. Most law classes only have 1 to 2 grades so it's essential that you do very well when you take them. Study your briefs, study your cases, study case law, and study statutes, and you should do well.
Step 4) I hope this has been a helpful article on how to do well in law school. Good luck!