When I am stressed or tired from life, it starts making me look ugly. Anyone else? How can I conceal this better and prevent it too?

I have noticed when I get very stressed or tired it obviously affects my appearance. I'm only 21 though and I want to keep myself looking good but the way I look sometimes... **Makes me think WHY EVEN TRY** but then there are days I look and feel beautiful.

However I think I'm definitely maybe lacking that glow? You know when someone just looks fresh and truly glowing?

It figures since I'm stressed a lot of the time, I'm going to find ways to manage it better but sometimes it's not rly avoidable I feel..

Oh and what's with the difference looks in different lighting?! The reason I think I may look dull is because at my home mirror, I will look beautiful and normal , some days I look very well.

But then somerimes I'll see myself in day light lighting, and I noticed my skin somehow now has this weird bumpy texture on my cheeks that I literally NEVER notice or even feel??

And I just look less good, suddenly my pimples are more red too.

I WOULD like to find a face cream or foundation that's LIGHT and breathable that'll basically provide a subtle coverage on my skin and brighten it up (I usually go for rly pale concealers for this effect but idk any good ones)

However it also starts from within, ofc I want to also make myself shine from within.

Are there any healthy eating or healthy habit tips that could help me with this? I know we will sometimes look more haggard that's life! But I feel it can be so often.

I've even noticed this in others, there are just days we look better than other days!