Some general questions..!!?

[Vaishal Patel]

1)At what age did you make your first investment?I am still 20 majoring computer science from a university in arkansas,i will graduate in about 2 years and then 2 more years for masters.Should i start investing now or after i am done with my masters?i know i still have to learn alot about real estate but do you guys think 20 is the correct age to start investing.
2)How do check the vacany rate of a area?i am particulary interested in investing in edison,nj.(i live in arkansas but i can move there).
3)How long do good investors usually search before they decide to invest in a property?I mean like for 1 week-2 weeks?