Restore ph balance

What is the best way to restore your ph balance ? As in most women , I can smell when mine is off plus I have white discharge . My ph is waaaaayyy off but I don’t have like a fishy smell - it’s hard to explain how it smell , it’s like a hint of metal or real acidic 🤷🏽‍♀️ anyway , I heard yogurt is helpful but is there anything else besides just yogurt ?

Side note - I don’t sleep with underwear on , i like to air it out after being at work or outside all day . I use vagisil to wash only the outside of my vagina like my lips or thighs . I do drink water , I cut off soda .

This is just realllllly annoying to deal with , someone please help