Its always much mess to choose from where to start.
Yeah obviously performing in theatres really helps in achieving something good in the field of acting. It will boost your confidence. Day by day, you will do better and the best benefit thing you will get from this is you will lose stage fear. The more you practice in front of audience, the more you will know your faults. It will really help in giving auditions anywhere and help you in making yourself better. The various types of drama you perform, the more you get the skills and it will really be fruitful.