I dont look my age :(

So Im turning 19 in a couple months, and Im feeling really down about myself because I look way too young for my age. People tell me I look 12 😞 I know that Ill appreciate it when Im older but Im so depressed right mow. The guys my age probably dont think Im legal and never show any interest in me. Ive never even been kissed... I feel horrible about myself. I really want to be in a relationship and feel like this is getting in the way.
Do I look 12? Can anyone give me advice to help me to look my age?