Want V (tear/tapered shaped) defined jaw + chin projection. Sliding genioplasty & t osteotomy? Sliding genioplasty alone?(Photo)

I had a medium silicone chin implant placed that did nothing for my frontal view & actually looks lopsided when I smile, I do have facial asymmetry & the implant gave me a bottom heavy (u shape) with no tapering/vertical definition. My profile looks better but the front does not & I have discomfort with it. I was told the only way to achieve the look is via sliding genio & chin t osteotomy? Do both need to be done or can it be 1 over the other? I don't have major overbite & have Invisalign now.