Mike, thank you for answering my question. however, im broke and need to know if there is a cheap fix that might solve my problem apart from a mechanic. please help

I have alott of experience rebuilding civic transmissions its a shaft and selector issue in the transmission no fluids will help that situation.they are super simple to rebuild only a 3-4 hr job n a 800$ rebuild kit+ selector arm happens alott to civics usually from reving it up n dumping 1st n going quickly to second the selector breaks but you can still shift around fine but first n then reverse will go out usually. drain the fluid and see if you can get a magnet tool up there n see the chunks of metal sometimes if its a clean split you cant tell until its apart I had one customer just had a slight kinda clunk into 3rd gear ,.. snapped off selector n it was a tiny seemingly "easy fix"" too its a 80% chance tho id say.hope it helps