I like checking back with these hands. They're suited and you're in position, definitely some potential. If the villain was limp-folding a lot from the SB it's justified, otherwise I think you're risking too much, especially if you want to take it down on later streets if you don't hit.
Very weird lead by the villain. Again, if he did this in earlier spots and you found he was weak and folded a lot to raises, it's justified to go for a bluff. I like bluffing
with more equity though. Your hand had absolutely no potential.
Same thing on the turn. Once he called on the flop I guess you were putting him on a naked club, which he had to fold facing this bet. Very risky though. Unless you had a dead read on how your opponent acted in certain spots this was probably not money making play.
In the long run, I'd probably be a bit more passive in these kinda spots. The money you're putting on the line with these plays isn't worth the winnings in the long run.