please help me out feeling very depressive

meri 11th kuch khaas nhi hui he advance level toh bilkul bhi nhi.....aur competition dekh kar bhut darr lag rha kya abhi se 100% de kar under 2k air in jee advance aa skti he kya please tell yor suggestions and tip to overcome fear....mein bhut darri hui aur depress feel kar rhi hu