How to sing
You can try a lot of different ways to sing that is from your throat, diaphragm, or chest. You should choose a method which hurts your vocal cords the least. When you are screaming relax your vocal cords, otherwise, you will absolutely thrash them and never be able to sing again. If possible sing from your chest. You should not push your range too high in chest and it should be supported from your diaphragm. Always support your notes with air, or else you would sound like garbage.