Dealing with insults

So i'm a 13 year old boy (born male not trans) and i have a kind of childish kind of feminine face. Now the people in my class (mostly like 3 or 4 boys) have been constantly making fun of my long hair ever since i came to school with long hair since i grew it out over the summer (they werent doing this before my hair growth), they mostly just say plainly "girl" or just keep telling me to cut my hair which i probably wont. School started like 3 days ago, been getting called a girl since like yesterday and they havent stopped. Today after school i did get a manbun and my friends, mom and brother are saying its better. Friends said i definetly look more masculine than before but im not sure what to do tmr when theyre flaming me so how do i react to insults without actually responding (im lithuanian) so how do i get thru the day without being affected mentally by the insults of me being feminine??