I wouldn't recommened what Dunbar did. I'm not say its a terrible move as its working out for her, however i still wouldn't recommend it. Good Bankroll management suggest to play $0.50/$1 you should have a bankroll of $1000. In your case Dodgey, good bankroll management says you shouldn't really play above $0.05/$0.10 cash and $5.50 stts.

As for playing tighter than a nats chuff i wouldn't recommend that if it isn't your natural game. You said that you were winning previously. What have you done to alter your game since you were winning last? Are you playing too many pots? Have you changed your strategy adversly by widening your starting hand selection or showing too much pre-flop passiveness? Basically i would recommend you analyse your game and try and plug some leeks. Just playing tight could actually cost you money. You should be adapting your style to the table. When everyone is playing loose, you should play tight and vice versa. Simply playing tight all the time will lose you advantages you can exploite.

If being to loose is your problem then playing really tight might be the answer. However i strongly suggest you take a look at your game. Look over your records and see whats been killing you.

Good Luck dude