#attention problem

I never had a big problem with my adhd because I always managed to have 2 or a 3 as grades without learning (something around B or C) ... so I literally haven’t learned anything for about 3 years... Now I have to learn because I’m learning a third language  but I just can’t concentrate...  I put away any electronic gadget... Listen to music... listen to no music... walked around while learning vocabolary but I just can’t even have enogh attention to learn some vocabs for like solid 5 minutes...