Hello can someone help me, my phone fingerprint doesn't work and I dont know why

My phone doesn't touch at all sometimes and I'm forced to restart it with buttons... can someone please help me out...

Hello I need help how do I turn off auto correct on the Samsung keyboard?

Nowadays my when I charge my phone it will charge yes but once it hits 62% or 72% depending on its mood it will charge really slow and literally... It writes 17hrs until fullDoes anyone have this issue or it's just me and how can I solve it?