how to have good chess openings??

i need a suggestion regarding d chess opening .

1.f4 +/-

I try to play a lot of main lines.  Your knowledge will improve along with your skill level, and these are the openings you're gonna want to play when higher-rated anyway.  After all they're the most popular because they offer the biggest possible opening advantage.

Here's what I play(ed) as an example.

1.e4

• Guioco Piano for a long time then Ruy Lopez
• open Sicilian
• 3.Nc3 french

Against e4, I play ..e5, and against d4, I play the QGD orthodox.  In the future I want to learn the Nimzo/Queen's Indian defenses and QGD should be good preparation for that.

Of course play whatever you enjoy but I think this is a fairly standard repertoire.  Hope that helps.  Cheers.