Do i need to practice shooting from sides?

ok so ive been taking basketball really serious latly. trying to improve my game as much as possible playing atleast an hour a day just a few days back i played 4.5hours strait tho. but ive been playing in my driveway cause there is no indoor gyms around and non eof the parks have proper lines. but the problem is that width wise my drive way isnt big enough. if i can sink 3 point shots from infront of the net but cant practice shooting from the sides is that gona show much in my game (mainly just play shooting gaurd)