04 WRX won’t start

Hello I have a 2004 Subaru WRX with an
issue with starting. Before turning the key to
start the car and having accessory on, the
lights will turn on, radio and lights in car
work. When I turn the key on it would make
one click noise and all of the electronics
would go dim. Took off the positive terminal
cable off the battery for a minute then put it
back on, started up no problem.
Unfortunately now the car won’t start at all
except when jumped!