Find a clear position for yourself and what style you are suitable for. This is not for you to throw yourself into a box to fix it. Instead, study your five senses, your lips and nose may look better, so you can focus on your eyes or eyelashes when you make up, without deliberately modifying them. You usually like to laugh, so you may need some pink blush. Therefore, finding your own feelings first is the premise of doing anything.
Choose what you can bear. For young people. Mid-range cosmetics will do. There will be layered cosmetics suitable for young skin and mid-range consumption. Choose cosmetics that suit your skin, feeling, color, etc. Also know that you should not be attracted or rejected by many online brands. Everyone has different skin types. I suggest you try your skin care products and cosmetics yourself before you decide to buy them.
A healthy figure and elegant posture can increase your overall temperament more than the skin on your face. So going to the gym doesn't have to cost money, but moderate exercise and attention to manners must be there. Shut up, spread your legs, go to bed early, stay up late less, be less angry, eat lightly, stick to it like granite, and slowly you will see that your skin is getting better every day.