Someone once asked...
Someone answered with kindness...
Calm down dear :) you're only 21 years into your life and so stressed about having it fucked up? You're a sprout.. the one that can still Grow when watered. Be easy on yourself even if it's difficult. Start small. For self-care if you have acne then you'll have motivation otherwise just lip mask/moisturizer and cleanser is enough. Weight..? Don't just eat more instead try having balanced meals and stop worrying about food all the time. Mental health? Tough one actually this one would take years to heal but I hope you find someone who heals you..