Whitney Port is struggling to get over her father's death.

The 28-year-old reality TV star-turned-fashion designer admitted she is still grieving for her father, Jeffrey Port, who lost his battle with kidney cancer in March, as she hosted a special spinning class for charity in his memory in Los Angeles on Saturday (15.06.13), to mark her first Father's Day weekend without him.

The former 'The Hills' star told UsMagazine.com: ''It was awesome. I just got all of my family and friends together and I just feel awesome energy riding in his honour.''

Whitney revealed that her grief is often overwhelming, explaining: ''I feel it comes in waves. I worked with my father so I feel like I'm trying to work even harder to do what he would want me to do and to motivate myself and live up to what our goals were.

''Obviously times are hard, but I'm the kind of person who is going to rise above it.''

The blonde beauty, who has her own fashion line, Whitney Eve, appreciates her private life more since the end of her reality show.

She said: ''You get to hold things sacred and things can be like private and intimate. You don't have to worry how anyone else is going to perceive it.

''Obviously it was so much fun, I don't regret it and it gave me the platform to launch what I'm doing now, but I'm really enjoying life without that kind of baggage.''