Droopy resting bitch face

[Orbix]

Whenever I'm smiling or slightly using my zygomaticus muscles my my mouth looks quiet good and symmetrical so I tend to try be doing one of those two as much as possible, but when I don't my face looks lopsided as shit. Is there any way of fixing this or do I need to wait until I lose weight so there isn't as much fat tissue to droop in the first place