some things that may help achieve orgasm . . .

being in love
being relaxed
music
pretty lights or candles
showering or bathing before
incense
freshly cleaned sheets and linen
lubricant
fluffy pillows
massage
sweet talk, sincere verbal intimacy before and/or during
planned (or not planned) encounter
breathing exercises before & during
verbally directing your partner to your hot spots
complimenting your partner on performance
and #1 NEVER FAKE AN ORGASM if you are having trouble initially