I think call it off now as you are undoubtedly behind but have a good price to draw and catch up (though your flush draw will be drawing dead sometimes), but few things to learn form this hand..
1. It's best to buy in for a full stack when playing cash games. So make sure your stack never falls below $2.
If you can't do this then you are probably not bank rolled to play cash yet (I'd recommend 50 Buy Ins, so you need at least $100 in your account).
2. Don't open raise UTG T9s in 2NL. (GTO Nerds come at me

)
The games are too loose, you are likely to get multiple callers with a very so-so hand out of position (short stack too makes it worse, you are never getting implied
odds i.e. make a giant hand occasionally and stack someone for 200bb+)
You have ended up in a spot you just shouldn't be in by a poor decision pre-flop.
3. What where you trying to achieve by 'clicking it back' on the flop?
You think this guy is going to fold after betting the flop into 4 people?
What do you think he has that bets that he can then fold?
You still have the CO and BTN yet to act behind you and could do anything at this point.
Your bets should be for value (where worse
hands call) or
bluff (better hands fold) - know which of these you are aiming for when you bet.
4. Take notes on villains.
See what BB bets with and what they both end up getting it in with. You will be losing this pot more the majority of times, so at least get some notes for your money!
(I hope you realise if you hit with your hand you will not win the full pot here? Only an additional 77c each from the other two in the hand as a the ,main pot, they will contest the rest in a side pot)