What you can do for casting practice is tie a piece of yarn to the end of your leader, go to the local field Set a pie plate out and about 30 ft to start casting till your hitting the plate 80-90% of the time, then move the plate 10ft to the right, same thing, the to the left same thing. then increase the distance 5ft and do the same thing. It is great to be able to bomb a cast out till you see your backing but to be able to put your cast on the mark will put more fish in your net.
but money is always best spent on lessons.
Teck
Edit: Pie plate and 80-90% might be to eager but puting your yard with in 3ft of that plate is good to be in the zone.
And have fun learning.