Welcome to the club, Ephemeral -- lots of us struggle with these same things.
QuoteI think you should probably focus less on "slimming down" your hips and more on bulking up your shoulders and arms as that's what often gives the illusion of the "V" shape.
This -- also, it's good to work on the upper back, especially the lats (major source of that V shape) and obliques (build them up to de-emphasize your waist); and it's pretty easy to bulk up your traps, which won't make your shoulders wider but will give them a lot more mass.
That said, if you want to bulk up, you'll need to work on increasing the weight you're lifting -- you can lift "moderate" weight forever, and you'll get somewhat stronger but not much will happen otherwise.
Overhead lifts are good, as they work your traps and triceps as well as your delts. (If you look at cis-male lifters, most of their upper-arm mass comes from triceps, not biceps.) Off the top of my head, some other good upper-body exercises would be bent-over rows, shrugs, bent-arm pull-overs... and the ever popular bench press, to keep things balanced by working your pecs, and work your triceps some more, and... just because it's a kick.