please tell me how to understand trignometry fastly

basic thing is to do practice at least 1 hour a day and try to learn all the formulas.The best way to learn all the formulas is that make a chart a past it on the wall front os your study table.

  Avoid shortcuts for the  first time when you solve questions. 

FIRST THING IS YOU HAVE PREPARE FORMULAS OF TRIGONAMETRY BY LOGICAL METHODS. AND YOU PRACTICE PROBLEMS 1 HOUR PER  EVERY DAY BY YOUR UNDERSTANDING METHOD. YOU CAN CHOOSE A METHOD WHERE YOU ARE EASILY UNDERSTOOD.

                                         BEST OF LUCK AND ALL THE BEST.