welcome to the forum
apart from the advise above ,read the download manual from the DJI website
dont try to fly indoors ,never ends well
find a nice secluded open space and fly low and slow to start with ,till you gain confidence, and learn what the drone is going to do for a given stick input ,and dont forget the drones direction to a given stick input will change depending on which way it is facing you
by that i mean if the camera is facing the same way as yourself, and you give the stick some left sideways movement, then the drone will respond by going left ,on the other hand ,if the camera is facing yourself ,then the same stick movement will send the drone to the right this also applies to forwards and backward stick movement as well
its this response that is the hardest thing to get used to but in time it becomes natural and it just takes practice ,