Firstly you need to choose a membership and sign up. Secondly you decide at which country you want to change your life. For instance you search for keywords like USA, New Zealand or Ireland. You will get a few results and inform yourself about the different hosts and their offers.
Simply visit their profile and send them a private message, where you introduce yourself shortly and apply for an internship at their rescue service.
Notice: Give information about your name, age, qualification and years of experience. Also remember to send them directly your certificates, e.g. EMT-P, ITLS, TCCC certification.