Is SIP worth it? As I recently started a job and want to start investing with a small amount. Can somebody guide me?

SIPs are worth it when: 

1. The markets are volatile, rangebound, and bearish. 
2. You don't have capital saved up for investing. 
3. You're too scared or risk-averse to the market fluctuations. 

SIPs are not good in bull markets because your average NAV is likely to go up when markets are rising, and a minor correction can wipe out your gains.