I want to simplify my x-axis by using breaks for the coordinates

I'm actually using this code:
ggline(myr_mass, x = "Latitude", y = "body_mass", color = "Taxa",
       add = c("mean_se", "dotplot"))+
  theme_bw()+
    rotate_x_text(45)
I want to simplify my x-axis by using breaks for the coordinates

I'm actually using this code:
ggline(myr_mass, x = "Latitude", y = "body_mass", color = "Taxa",
       add = c("mean_se", "dotplot"))+
  theme_bw()+
    rotate_x_text(45)
 
    
    