Am I Overweight?

I'm 5'4 and I weigh 120 lbs. Also do you have any weight loss tips? Thank you so much!

Edit: I'm 12 and I looked up the average weight for 12 year olds and it's 95. For the longest time I was 90 pounds and I gained 30 pounds within a month so I was really depressed. I'm kinda pudgy and I show it.