FIRST ISSUE

Any ideas? I use this phone for work and cannot be without it for days or weeks.
Thanks in advance.
BG
- Galaxy A13 on Google Fi - Little over a year old
- Screen times out / turns off
- Pressing power button often does nothing to wake up the screen
- But if I connect and then disconnect a charger, the screen awakes and I can use the phone
- Eventually the screen times out again and this pattern repeats
- Battery died
- Charged battery to 100%
- Power button now does nothing
- I cannot turn the phone on to use it

Any ideas? I use this phone for work and cannot be without it for days or weeks.
Thanks in advance.
BG