Average stack 32K, I have 19,5K, Blinds 150/300

4 limpers in front of me, I make it 1200 in the SB(damn, that was way too small given that people were so loose and bad),
BB calls and all limpers call. Pot is 7650.

Flop comes J89r. What is the optimal play here?
I thought long about c-betting, but then decided to check, as the flop probably hits someone so hard.
BB bets 2500, one limper calls. Hero ???

Ive never in my life played a hand so badly imo, should have just bet flop, or check call, but I actually
check shoved. My initial plan was checking calling, but then I thought I needed protection as there are so many
turn cards that I hate. But now I feel like cbet for value half pot is best, but it is kind of awkward with my stack size.
Because I will definitely get one caller and what do I do on turns now?

Ah man that hand sucked...