Need to raise myself by 700+

Hey! So I did the SAT test 5 months ago, and I got 1620. Now for next year, I am aiming for at leas 2300. I know it sounds a bit much for me, but I got 1620 with only about 15 hours of lazy practice, 4 hours of real practice. And I only studied from the Blue book. So I now I have about 6 months in hand, and I am willing to put as much as needed to get the raise I need. Any idea how can I achieve that? I need any advice available please. I am willing to buy books and spend 4 hours daily studying for my next test.

Detailed SAT Score:
Writing: 480
Reading: 480
Math: 660

Thanks in advance!

Raising an SAT score by 700+ points is extremely difficult, even if you did slack off while studying for the first SAT. You’ll need to make sure to buy a plethora of SAT prep books, which I believe can be found on the SAT sticky thread “How I raised my score by 730 points”, or something similar. I also suggest a private tutor, with my personal favorite being PrepScholar: https://www.prepscholar.com/sat/s/. You’ll need to study for at least a solid 10 hours every week. If you follow these and even extend beyond these, then your chances of a 700+ point raise will look less impossible.

http://talk.collegeconfidential.com/sat-preparation/1637676-how-i-raised-my-sat-score-by-790-points-my-story.html#latest