If on May 20 you are close, you like SharePoint and all Microsoft collaboration technology then I recommend that you sign up for SharePoint Second Saturday Madrid, as it will be very good. As I know, simple, I know the organizers and above all I just see the grid of speakers who will be speaking and all of them are front line professionals and experts.
Check the agenda http://www.spsevents.org/city/Madrid2017/sessions of the event to finish convincing you that you have to be and finish convincing your boss to let you go, since I assure you that after the 20 de Mayo you will know much more about SharePoint and Microsoft collaboration technology.
But above all, the event is FREE, so do not hesitate, sign up here and participate in it, you will not regret it.