Go on youtube and search for 'praying medic'. He does a fabulous job of explaining who Q is and he gives an hour and a half overview of everything that's been going on. Very well done.
Back in Oct 2017, a poster named Q started posting on a website called ForChan/4Chan, which is an anonymous message board where people can discuss all types of topics. Q started posting questions about current political events and claimed that they were part of military intelligence, who was working with Trump to take back our country from the deep state. The purpose of the posts is to post information to awaken the public by helping them 'connect the dots' as to the conspiracy that has been enveloping our country/world for decades. If the public doesn't wake up, then we cannot take advantage of the work that POTUS and Q are trying to do - which is to clear out the govt of traitors, child slavery promoters, terrorists and satanists. The reason they chose the 4Chan site is because it is filled with IT experts who are aware of govt corruption and who have an active motivation for spreading the truth. From there, Q hoped that these IT 'anons' (as they call themselves, because the 4chan board is anonymous) would help spread the word. This has worked well so far.