anyone who thinks that you don't have pot odds with an open ended straight and flush draw is wrong. You have at least 40% equity here, and may have as high as 60%.
The only reason you should fold here is because you are risking all your chips. If the chip counts were reversed, I put my opponent all in.

In hand one, bet more. For a bluff to be successful, you need to put in bets your opponents won't call. About the size of the pot should be good. As it stands, it looks like you had the best hand with a pair of 2s. Be careful thinking that you are making successful bluffs, when you are really accidentally value betting. This will lead to making unsuccessful bluffs far too often.