Why do my light bulbs keep going and why do they trip out my fuse?

 

This is a common problem, and it doest mean you have wiring problem, most wiring problem will pick up by MCBs.
When a bulb blows most likely trips MCB on lighting circuit because of over current will flow through the lamp element.
For start you can stop buying cheap bulb, cheap light bulbs made from cheaper and thinner element which are more likely to blow with surge power.
Loose light bulb and lose connection can also blow bulb. Edison screw type can get lose after a while they been used. always check them and make sure they are have good connection with back of the lamp in lamp holder, when they get loose they will start sparking and arcing in lamp holder. make sure wiring connection in lamp holder and switch are not loose either.
don’t forget to make sure to turn electric off when you doing this.

light bulb