Starting maths,biology, chemistry and spanish a levels in 4 daysWatch
try different revision techniques to keep yourself interested
allocate time for your phone otherwise put it away (it'll be better if youre 100% into revising/learning than if youre 10% revising/learning and 90% on phone)
listen to music that can help you concentrate.
Spanish - watch spanish films and read spanish books. Try a penpal website or go on school trips for exchanges. Again, online flashcards or sites like memrise are extremely useful. Listen to spanish music.