I wouldn't give much weight to what friends or strangers think about your size. When people are used to seeing you one way, any big shift can surprise them and they often react negatively at first. Sometimes the comments are just unhelpful or even meant to hold you back. At 5'4 the range from 100 to 145 is considered fine according to the CDC tool. Body composition matters too. A higher number can still look and feel good if you're lifting regularly, while the same number might not if you're inactive. The only views that count are your own and your doctor's.
This might sound like a dumb question, but how did everyone settle on their target? Did they follow a BMI chart or pick something else? Since I've never been a typical adult size, there's no earlier version of me to go by. I'm aiming for 130 at the moment. For context I'm 44, female, and 5'4 tall, and the normal range listed is 110-140. An old friend recently ran into me and seemed surprised, telling me I looked underweight. Right now the scale shows 142.