The typical training progression:

• ASEL private pilot
• instrument rating
• ASEL commercial certificate
• multiengine rating
• certificated flight instructor
• instrument instructor
• multengine instructor

(ASEL= airplane single engine land)

It appears you just got your PPL (private pilot license) and are looking at adding an instrument rating. Rather than randomly building hours according to your reading of the FARs, start your instrument training with an instructor. They will tell you when to start building flight time doing simulated IFR approaches with a "safety pilot", who is usually another instrument student.

After you finish that effort you should get your commercial certificate most likely.