Best Openings For Black 1300 - 1600

I am trying to find the right opening for myself using the black pieces because I lose a lot more while playing with black (35% win rate in the last 90 days).  Any recommendations? (If you have any other advice on how to play with black pieces I will gladly take)

I started playing the Sicilian Najdorf when I was rated about 1400 OTB.

Still playing it.

i would recommend learning both the

caro-kann(against e4)

or

kings indian(against d4 and any other move)

(kings indian)if any other move than d4 or c4, play d6 then Nf6 then play your setup

(kings indian)if d4 or c4 play nf6 first

wasn't your latest game in 2021-

When you're nearly 70, "three years ago" and "still doing it" mean just about the same thing.

Sicilian Dragon for sure