What’s wrong with my Transmission?

Hello everyone I’m a 22 year old student in
an inevitable bad situation.
A little info about the car is that it’s a 2001
Honda Accord 4-cylinder with 266,000 km
and have recently ran into some problems
which I believe are transmission related. The
problem is that anytime I come to a dead
stop and the car is still in gear D4, the gear
disengages as if it were in neutral and upon
applying a little bit of gas the gear will
reengage and have smooth transition from
gears 1 through 5 without any jerks. The
same is true for the reverse gear, where the
car behaves as if it is in neutral and upon
applying a little bit of gas the reverse gear
engages and the car reverses normally.

I know the 2001 Honda transmissions all
have issues so I have always had regular oil
changes and transmission fluid is good as
well. So I was wondering is this something
that I just pray it lasts and see how long it
goes or is their a diagnosis that you
experienced motorists know of?