Breathing slowly but deeply also helps you to Barbarian Xl last longer probably in the most efficient way. Try to inhale air through your nose; this can reduce your level of excitement and hence you can perform better to last longer.
To concentrate on stimulating your partner is not a bid deal and you can do so by forgetting about yourself. This way you can surely get yourself last longer in bed because your body responses to what you think in mind. That's why this is a good suggestion that you should think; you are playing this sex game to give pleasure, not to take it.
Always go for the most appropriate position, for instance you can choose any of Cowgirls, Front to back, Face me and Ride me. These positions may not be the best positions to grab the highest pleasure of the sexual intercourse but apart from this fact, they can surely help you to last longer in bed.