First, I want to reassure you that at 18, having laugh lines, under-eye hollowness, or some fullness around the jaw does not automatically mean that your face is aging prematurely. Facial structure varies tremendously from person to person, and things such as genetics, bone structure, facial fat distribution, lighting, dehydration, and even the way you naturally move your face can create shadows that look like “sagging” or deep lines. At your age, I would be very cautious about trying to correct these concerns with fillers, Botox, or aggressive tightening procedures. You generally do not need to start treating your face as though it is an aging face at 18. Adding filler to the cheeks, under-eyes, or nasolabial folds can sometimes create more problems than it solves, particularly when the underlying concern is simply your natural anatomy. For the dark or hollow appearance under your eyes, a good starting point is a simple routine: gentle cleanser, moisturizer, and daily SPF 30–50. If you have allergies, nasal congestion, poor sleep, or significant pigmentation, addressing those factors can make a surprisingly noticeable difference. For the laugh lines, don't feel that you need to erase them. Everyone develops lines when they smile, and trying to completely eliminate normal expression lines can make the face look less natural. As for the jowls, what looks like a “sagging jowl” at 18 may actually be your normal jaw shape, cheek-to-jaw transition, or facial fat distribution rather than loose skin. At this age, surgery or aggressive skin-tightening would generally not be my first choice. Most importantly, you don't need an expensive procedure to look your age. If you're working a minimum-wage job, I would much rather see you spend your money on basic skincare, sunscreen, adequate nutrition, hydration, and sleep than feel pressured into an expensive cosmetic treatment. Your face is still young, and there is plenty of time to consider cosmetic procedures later if a specific structural concern remains.