TPTK no good here?

[KSakuraba]

Texas Hold'em No Limit EUR 2,00/4,00
8-handed
First hand in the table so no reads at all


Players involved:
Villain1 (EUR 506.25 in seat 1)
Villain2 (EUR 351.00 in seat 2)
Villain3 (EUR 194.50 in seat 3)
Sakuraba (EUR 400.00 in seat 6)



Sakuraba (BB) was dealt: Ad - Ks

2 folds
Villain1 Call (4.00)
Villain2 Call (4.00)
Villain3 Call (4.00)
SB Call (2.00)
Sakuraba Raise (22.00)
Villain1 Call (22.00)
Villain2 Call (22.00)
Villain3 Call (22.00)
SB Fold

Flop 4d - Kh - Qh (Pot ~100€)

Sakuraba Bet (90.00)
Villain1 Call (90.00)
Villain2 Call (90.00)
Villain3 Fold

Turn 4d - Kh - Qh - 6h

Sakuraba???

Is check folding here too weak? Any advice would be greatly appreciated because i seem to get lost in this kind of situations more often than not...thanks guys.