[Misc] I have majorly fucked up my skin elasticity and volume in less than a year

I recently turned 24 and I had a very bad mental health crisis for about 7 months. During that time, I was eating copious amount of fast food and sugar and binge eating. I’ve now realized that my skin looks haggard - I’ve lost volume and have had deep nasolabial lines form, my underyes are sallow. Can I reverse any of this? I legitimately look years older within a span of months