If you want to specialise in conducting you should take every opportunity to practise with local amateur groups. Not only will this help you to judge whether or not it is really for you, it will also enable you to develop your technique and extend your range of contacts.
It is invaluable to have experience of playing or singing in an ensemble in order to observe how conductors achieve their results.
There is also much to be gained from attending rehearsals as an observer and many professional orchestras are willing to allow access to rehearsals.
Investigate summer courses as these offer high-quality training as well as the opportunity to share ideas with other students of conducting.
Occasionally orchestras or professional choirs offer trainee conductorships, and some musicians may succeed in switching to conducting after a period as an orchestral player or soloist.
Conductors are listed in the ISM Register of Performers and Composers. See also their section on careers in music.