Third Day in Fake Skin

Any advice? I’ve been using a 3rl how I could know if the needle it’s deep enough in the skin? I feel very proud for the results in the third day of practice but I feel like I need the opinion of someone who really knows, feel alone in this path 😅

Any advice? I’ve been using a 3rl how I could know if the needle it’s deep enough in the skin? I feel very proud for the results in the third day of practice but I feel like I need the opinion of someone who really knows, feel alone in this path 😅