Hey OP. I'm guessing in India fish keeping is a bit of a challenge? I am guessing that it isn't every day you could find someone with a tank big enough to keep the fish you listed. Anyway, as you can tell you do have some changes that should be made. I am relatively new to the hobby, but I know how easy it is to make mistakes especially when around here every fish store sells oscars, pacus, and common plecos and I'm guessing 90% of the people who buy them don't have the tank size to accommodate them.
Anyway, you have some challenges. If I were you, I would try to "give" these fish away, forget selling them. Start over. If you keep the 22G, can you get dwarf cichlids? Like a pair of bolivian rams or a trio of apistogramma? Or get a much larger tank and keep the GT and give away the rest.
Just some thoughts.